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CCNA 2 v7 Modules 1 – 4: Switching Concepts, VLANs, and InterVLAN Routing Exam Answers

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Switching, Routing, and Wireless Essentials ( Version 7.00) – Switching Concepts, VLANs, and Inter-VLAN Routing Exam

1. Which tasks can be accomplished by using the command history feature? (Choose two.)

View a list of commands entered in a previous session.
Recall up to 15 command lines by default.
Set the command history buffer size.
Recall previously entered commands.
Save command lines in a log file for future reference.

Explanation: The history command allows you to view and reuse previously entered commands stored in the buffer. It is also used to manage the of the buffer.

2. What is the first action in the boot sequence when a switch is powered on?

load the default Cisco IOS software
load boot loader software
low-level CPU initialization
load a power-on self-test program

Explanation: The first action to take place when a switch is powered on is the POST or power-on self-test. POST performs tests on the CPU, memory, and flash in preparation for loading the boot loader.

3. What must an administrator have in order to reset a lost password on a router?

a TFTP server
a crossover cable
access to another router
physical access to the router

Explanation: Console access to the device through a terminal or terminal emulator software on a PC is required for password recovery.

4. When configuring a switch for SSH access, what other command that is associated with the login local command is required to be entered on the switch?

enable secret password
password password
username username secret secret
login block-for seconds attempts number within*seconds*

Explanation: The login local command designates that the local username database is used to authenticate interfaces such as console or vty.

5. Which command displays information about the auto-MDIX setting for a specific interface?

show interfaces
show controllers
show processes
show running-config

Explanation: To examine the auto-MDIX setting for a specific interface, the show controllers ethernet-controller command with the phy keyword should be used.

6. If one end of an Ethernet connection is configured for full duplex and the other end of the connection is configured for half duplex, where would late collisions be observed?

on both ends of the connection
on the full-duplex end of the connection
only on serial interfaces
on the half-duplex end of the connection

Explanation: Full-duplex communications do not produce collisions. However, collisions often occur in half-duplex operations. When a connection has two different duplex configurations, the half-duplex end will experience late collisions. Collisions are found on Ethernet networks. Serial interfaces use technologies other than Ethernet.

7. Which command is used to set the BOOT environment variable that defines where to find the IOS image file on a switch?

config-register
boot system
boot loader
confreg

Explanation: The boot system command is used to set the BOOT environment variable. The config-register and confreg commands are used to set the configuration register. The boot loader command supports commands to format the flash file system, reinstall the operating system software, and recover from a lost or forgotten password.

8. What does a switch use to locate and load the IOS image?

BOOT environment variable
IOS image file
POST
startup-config
NVRAM

Explanation: The BOOT environment variable contains the information about where to find the IOS image file.

9. Which protocol adds security to remote connections?

FTP
HTTP
NetBEUI
POP
SSH

Explanation: SSH allows a technician to securely connect to a remote network device for monitoring and troubleshooting. HTTP establishes web page requests. FTP manages file transfer. NetBEUI is not routed on the Internet. POP downloads email messages from email servers.

10. What is a characteristic of an IPv4 loopback interface on a Cisco IOS router?

The no shutdown command is required to place this interface in an UP state.
It is a logical interface internal to the router.
Only one loopback interface can be enabled on a router.
It is assigned to a physical port and can be connected to other devices.

Explanation: The loopback interface is a logical interface internal to the router and is automatically placed in an UP state, as long as the router is functioning. It is not assigned to a physical port and can therefore never be connected to any other device. Multiple loopback interfaces can be enabled on a router.

11. What is the minimum Ethernet frame size that will not be discarded by the receiver as a runt frame?

64 bytes
512 bytes
1024 bytes
1500 bytes

Explanation: The minimum Ethernet frame size is 64 bytes. Frames smaller than 64 bytes are considered collision fragments or runt frames and are discarded.

12. After which step of the switch bootup sequence is the boot loader executed?

after CPU initialization
after IOS localization
after flash file system initialization
after POST execution

Explanation: The correct bootup sequence order is as follows:
1.- The switch loads and executes the POST.
2.- The switch loads the boot loader software.
3.- The boot loader performs low-level CPU initialization.
4.- The boot loader initializes the flash memory.
5.- The boot loader locates and loads the default IOS image.

13. Which impact does adding a Layer 2 switch have on a network?

an increase in the number of dropped frames
an increase in the size of the broadcast domain
an increase in the number of network collisions
an increase in the size of the collision domain

Explanation: Adding a Layer 2 switch to a network increases the number of collision domains and increases the size of the broadcast domain. Layer 2 switches do not decrease the amount of broadcast traffic, do not increase the amount of network collisions and do not increase the number of dropped frames.

14. Which characteristic describes cut-through switching?

Error-free fragments are forwarded, so switching occurs with lower latency.
Frames are forwarded without any error checking.
Only outgoing frames are checked for errors.
Buffering is used to support different Ethernet speeds.

Explanation: Cut-through switching reduces latency by forwarding frames as soon as the destination MAC address and the corresponding switch port are read from the MAC address table. This switching method does not perform any error checking and does not use buffers to support different Ethernet speeds. Error checking and buffers are characteristics of store-and-forward switching.

15. What is the significant difference between a hub and a Layer 2 LAN switch?

A hub extends a collision domain, and a switch divides collision domains.
A hub divides collision domains, and a switch divides broadcast domains.
Each port of a hub is a collision domain, and each port of a switch is a broadcast domain.
A hub forwards frames, and a switch forwards only packets.

Explanation: Hubs operate only at the physical layer, forwarding bits as wire signals out all ports, and extend the collision domain of a network. Switches forward frames at the data link layer and each switch port is a separate collision domain which creates more, but smaller, collision domains. Switches do not manage broadcast domains because broadcast frames are always forwarded out all active ports.

Frame forwarding decisions are based on MAC address and port mappings in the CAM table.
Cut-through frame forwarding ensures that invalid frames are always dropped.
Only frames with a broadcast destination address are forwarded out all active switch ports.
Unicast frames are always forwarded regardless of the destination MAC address.

Explanation: Cut-through frame forwarding reads up to only the first 22 bytes of a frame, which excludes the frame check sequence and thus invalid frames may be forwarded. In addition to broadcast frames, frames with a destination MAC address that is not in the CAM are also flooded out all active ports. Unicast frames are not always forwarded. Received frames with a destination MAC address that is associated with the switch port on which it is received are not forwarded because the destination exists on the network segment connected to that port.

17. How do switch buffers affect network performance?

They provide error checking on the data received.
They store frames received, thus preventing premature frame discarding when network congestion occurs.
They provide extra memory for a particular port if autonegotiation of speed or duplex fails.
They hold data temporarily when a collision occurs until normal data transmission resumes.

Explanation: Switches have large frame buffers that allow data waiting to be transmitted to be stored so the data will not be dropped. This feature is beneficial especially if the incoming traffic is from a faster port than the egress port used for transmitting.

18. Which switch characteristic helps keep traffic local and alleviates network congestion?

high port density
fast port speed
large frame buffers
fast internal switching

Explanation: Switches that have a lot of ports (high port density) reduce the number of switches required and keep some of the traffic locally on the switch, thus removing the need to send it between switches.

19. Which switch component reduces the amount of packet handling time inside the switch?

ASIC
dual processors
large buffer size
store-and-forward RAM

Explanation: Application-specific integrated circuits (ASICs) are used in Cisco switches to speed up switch operations so that the switch can have an increased number of ports without degrading switch performance.

20. Refer to the exhibit. A switch receives a Layer 2 frame that contains a source MAC address of 000b.a023.c501 and a destination MAC address of 0050.0fae.75aa. Place the switch steps in the order they occur. (Not all options are used.)

CCNA2 v7 SRWE – Modules 1 – 4: Switching Concepts, VLANs, and InterVLAN Routing Exam Answers

CCNA 2 v7 Modules 1 – 4: Switching Concepts, VLANs, and InterVLAN Routing Exam Answers 20

Explanation: The first step a switch does when processing a frame is to see if the source MAC address is in the MAC address table. If the address is not there, the switch adds it. The switch then examines the destination MAC address and compares it to the MAC address table. If the address is in the table, the switch forwards the frame out the corresponding port. If the address is missing from the table, the switch will forward the frame to all ports except the port through which the frame arrived.

source MAC address and incoming port number
destination MAC address and incoming port number
source IP address and incoming port number
destination IP address and incoming port number

Explanation: A switch “learns” or builds the MAC address table based on the source MAC address as a frame comes into the switch. A switch forwards the frame onward based on the destination MAC address.

22. Which switching method ensures that the incoming frame is error-free before forwarding?

cut-through
FCS
fragment free
store-and-forward

Explanation: Two methods used by switches to transmit frames are store-and-forward and cut-through switching. The store-and-forward method performs error checking on the frame using the frame check sequence (FCS) value before sending the frame. In contrast, cut-through switching sends the frame as soon as the destination MAC address part of the header has been read and processed.

23. Refer to the exhibit. How many broadcast domains are displayed?

CCNA2 v7 SRWE – Modules 1 – 4 Switching Concepts, VLANs, and InterVLAN Routing Exam Answers 23

Explanation: A router defines a broadcast boundary, so every link between two routers is a broadcast domain. In the exhibit, 4 links between routers make 4 broadcast domains. Also, each LAN that is connected to a router is a broadcast domain. The 4 LANs in the exhibit result in 4 more broadcast domains, so there are 8 broadcast domains in all.

24. Under which two occasions should an administrator disable DTP while managing a local area network? (Choose two.)

when connecting a Cisco switch to a non-Cisco switch
when a neighbor switch uses a DTP mode of dynamic auto
when a neighbor switch uses a DTP mode of dynamic desirable
on links that should not be trunking
on links that should dynamically attempt trunking

Explanation: Cisco best practice recommends disabling DTP on links where trunking is not intended and when a Cisco switch is connected to a non-Cisco switch. DTP is required for dynamic trunk negotiation.

25. Which two characteristics describe the native VLAN? (Choose two.)

Designed to carry traffic that is generated by users, this type of VLAN is also known as the default VLAN.
The native VLAN traffic will be untagged across the trunk link.
This VLAN is necessary for remote management of a switch.
High priority traffic, such as voice traffic, uses the native VLAN.
The native VLAN provides a common identifier to both ends of a trunk.

Explanation: The native VLAN is assigned to 802.1Q trunks to provide a common identifier to both ends of the trunk link. Whatever VLAN native number is assigned to a port, or if the port is the default VLAN of 1, the port does not tag any frame in that VLAN as the traffic travels across the trunk. At the other end of the link, the receiving device that sees no tag knows the specific VLAN number because the receiving device must have the exact native VLAN number. The native VLAN should be an unused VLAN that is distinct from VLAN1, the default VLAN, as well as other VLANs. Data VLANs, also known as user VLANs, are configured to carry user-generated traffic, with the exception of high priority traffic, such as VoIP. Voice VLANs are configured for VoIP traffic. The management VLAN is configured to provide access to the management capabilities of a switch.

26. On a switch that is configured with multiple VLANs, which command will remove only VLAN 100 from the switch?

Switch# delete flash:vlan.dat
Switch(config-if)# no switchport access vlan 100
Switch(config-if)# no switchport trunk allowed vlan 100
Switch(config)# no vlan 100

Explanation: To remove all VLANs from a switch, the delete flash:vlan.dat command would be used. To change the assigned VLAN for an interface, the no switchport access vlan 100 interface configuration command would be used. To remove VLAN 100 as an allowed VLAN on a trunk, the no switchport trunk allowed vlan 100 would be used, but this would not remove the VLAN from the switch. To delete a single VLAN, such as VLAN 100, the no vlan 100 global configuration command would be used.

CCNA 2 v7 Modules 1 – 4 Switching Concepts, VLANs, and InterVLAN Routing Exam 27

There is a native VLAN mismatch between the switches.
There is no media connected to the interfaces.
They are administratively shut down.
They are configured as trunk interfaces.

Explanation: Interfaces that are configured as trunks do not belong to a VLAN and therefore will not show in the output of the show vlan brief commands.

28. A network contains multiple VLANs spanning multiple switches. What happens when a device in VLAN 20 sends a broadcast Ethernet frame?

All devices in all VLANs see the frame.
Devices in VLAN 20 and the management VLAN see the frame.
Only devices in VLAN 20 see the frame.
Only devices that are connected to the local switch see the frame.

Explanation: VLANs create logical broadcast domains that can span multiple VLAN segments. Ethernet frames that are sent by a device on a specific VLAN can only be seen by other devices in the same VLAN.

29. Refer to the exhibit. All workstations are configured correctly in VLAN 20. Workstations that are connected to switch SW1 are not able to send traffic to workstations on SW2. What could be done to remedy the problem?

CCNA2 v7 SRWE – Modules 1 – 4 Switching Concepts, VLANs, and InterVLAN Routing Exam Answers 29

Allow VLAN 20 on the trunk link.
Enable DTP on both ends of the trunk.
Configure all workstations on SW1 to be part of the default VLAN.
Configure all workstations on SW2 to be part of the native VLAN.

Explanation: Enabling DTP on both switches simply allows negotiation of trunking. The “Negotiation of Trunking” line in the graphic shows that DTP is already enabled. The graphic also shows how the native VLAN is 1, and the default VLAN for any Cisco switch is 1. The graphic shows the PCs are to be in VLAN 20.

30. What happens to switch ports after the VLAN to which they are assigned is deleted?

The ports are disabled.
The ports are placed in trunk mode.
The ports are assigned to VLAN1, the default VLAN.
The ports stop communicating with the attached devices.

Explanation: Any ports that are not moved to an active VLAN cannot communicate with other hosts after the VLAN is deleted. They must be assigned to an active VLAN or their VLAN must be created.

31. Match the IEEE 802.1Q standard VLAN tag field with the description. (Not all options are used.)

CCNA2 v7 Modules 1 – 4 Switching Concepts, VLANs, and InterVLAN Routing Exam Answers 31

Explanation: The IEEE 802.1Q standard header includes a 4-byte VLAN tag:

Type – A 2-byte value called the tag protocol ID (TPID) value.
User priority – A 3-bit value that supports level or service implementation.
Canonical Format Identifier (CFI) – A 1-bit identifier that enables Token Ring frames to be carried across Ethernet links.
VLAN ID (VID) – A 12-bit VLAN identification number that supports up to 4096 VLAN IDs.

CCNA2 v7 Modules 1 – 4 Switching Concepts, VLANs, and InterVLAN Routing Exam Answers 32

access
trunk
native
auto

Explanation: The router is used to route between the two VLANs, thus switch port G0/1 needs to be configured in trunk mode.

33. Match the DTP mode with its function. (Not all options are used.)

CCNA2 v7 Modules 1 – 4 Switching Concepts, VLANs, and InterVLAN Routing Exam Answers 33

Explanation: The dynamic auto mode makes the interface become a trunk interface if the neighboring interface is set to trunk or desirable mode. The dynamic desirable mode makes the interface actively attempt to convert the link to a trunk link. The trunk mode puts the interface into permanent trunking mode and negotiates to convert the neighboring link into a trunk link. The nonegotiate mode prevents the interface from generating DTP frames.

34. Port Fa0/11 on a switch is assigned to VLAN 30. If the command no switchport access vlan 30 is entered on the Fa0/11 interface, what will happen?

Port Fa0/11 will be shutdown.
An error message would be displayed.
Port Fa0/11 will be returned to VLAN 1.
VLAN 30 will be deleted.

Explanation: When the no switchport access vlan command is entered, the port is returned to the default VLAN 1. The port will remain active as a member of VLAN 1, and VLAN 30 will still be intact, even if no other ports are associated with it.

35. Which command displays the encapsulation type, the voice VLAN ID, and the access mode VLAN for the Fa0/1 interface?

show vlan brief
show interfaces Fa0/1 switchport
show mac address-table interface Fa0/1
show interfaces trunk

Explanation: The show interfaces switchport command displays the following information for a given port:
Switchport
Administrative Mode
Operational Mode
Administrative Trunking Encapsulation
Operational Trunking Encapsulation
Negotiation of Trunking
Access Mode VLAN
Trunking Native Mode VLAN
Administrative Native VLAN tagging
Voice VLAN

There is nothing wrong with the configuration.
Interface Fa0/20 can only have one VLAN assigned.
The mls qos trust cos command should reference VLAN 35.
The command used to assign the voice VLAN to the switch port is incorrect.

Explanation: The voice VLAN should be configured with the switchport voice vlan 150 command. A switch interface can be configured to support one data VLAN and one voice VLAN. The mls qos trust cos associates with the interface. Voice traffic must be trusted so that fields within the voice packet can be used to classify it for QoS.

37. Which four steps are needed to configure a voice VLAN on a switch port? (Choose four).

Configure the interface as an IEEE 802.1Q trunk.
Assign the voice VLAN to the switch port.
Activate spanning-tree PortFast on the interface.
Ensure that voice traffic is trusted and tagged with a CoS priority value.
Add a voice VLAN.
Configure the switch port interface with subinterfaces.
Assign a data VLAN to the switch port.
Configure the switch port in access mode.

Explanation: To add an IP phone, the following commands should be added to the switch port:
SW3(config-vlan)# vlan 150
SW3(config-vlan)# name voice
SW3(config-vlan)# int fa0/20
SW3(config-if)# switchport mode access
SW3(config-if)# mls qos trust cos
SW3(config-if)# switchport access vlan 150

38. Refer to the exhibit. PC1 is unable to communicate with server 1. The network administrator issues the show interfaces trunk command to begin troubleshooting. What conclusion can be made based on the output of this command?

CCNA2 v7 Modules 1 – 4 Switching Concepts, VLANs, and InterVLAN Routing Exam Answers 38

Interface G0/2 is not configured as a trunk.
VLAN 20 has not been created.
The encapsulation on interface G0/1 is incorrect.
The DTP mode is incorrectly set to dynamic auto on interface G0/1.

Explanation: In the show interfaces trunk output, the G0/2 interface of DLS1 is not listed. This indicates the interface has probably not been configured as a trunk link. In the show interfaces trunk output, the G0/2 interface of DLS1 is not listed. This indicates the interface has probably not been configured as a trunk link.

39. Refer to the exhibit. What is the cause of the error that is displayed in the configuration of inter-VLAN routing on router CiscoVille?

CCNA2 v7 Modules 1 – 4 Switching Concepts, VLANs, and InterVLAN Routing Exam Answers 39

The gig0/0 interface does not support inter-VLAN routing.
The no shutdown command has not been configured.
The IP address on CiscoVille is incorrect.
The encapsulation dot1Q 20 command has not been configured.

40. Refer to the exhibit. A network administrator has configured router CiscoVille with the above commands to provide inter-VLAN routing. What command will be required on a switch that is connected to the Gi0/0 interface on router CiscoVille to allow inter-VLAN routing?

switchport mode access
no switchport
switchport mode trunk
switchport mode dynamic desirable

Explanation: When they are configured for inter-VLAN routing, routers do not support the dynamic trunking protocol that is used by switches. For router-on-a-stick configurations to function, a connected switch must use the command switchport mode trunk.

41. A high school uses VLAN15 for the laboratory network and VLAN30 for the faculty network. What is required to enable communication between these two VLANs while using the router-on-a-stick approach?

A multilayer switch is needed.
A router with at least two LAN interfaces is needed.
Two groups of switches are needed, each with ports that are configured for one VLAN.
A switch with a port that is configured as a trunk is needed when connecting to the router.

Explanation: With router-on-a-stick, inter-VLAN routing is performed by a router with a single router interface that is connected to a switch port configured with trunk mode. Multiple subinterfaces, each configured for a VLAN, can be configured under the single physical router interface. Switches can have ports that are assigned to different VLANs, but communication between those VLANs requires routing function from the router. A multilayer switch is not used in a router-on-a-stick approach to inter-VLAN routing.

42. When routing a large number of VLANs, what are two disadvantages of using the router-on-a-stick inter-VLAN routing method rather than the multilayer switch inter-VLAN routing method? (Choose two.)

Multiple SVIs are needed.
A dedicated router is required.
Router-on-a-stick requires subinterfaces to be configured on the same subnets.
Router-on-a-stick requires multiple physical interfaces on a router.
Multiple subinterfaces may impact the traffic flow speed.

Explanation: With the router-on-a-stick inter-VLAN routing method, a dedicated router is required. It only needs one physical interface on the router to route traffic among multiple VLANs, by using subinterfaces on one physical interface. On the other hand, since traffic of all VLANs will have to go through the same physical interfaces, the throughput will be impacted. Also, a multilayer switch can use multiple SVIs to perform inter-VLAN routing.

43. Refer to the exhibit. A network administrator is verifying the configuration of inter-VLAN routing. Users complain that PCs on different VLANs cannot communicate. Based on the output, what are two configuration errors on switch interface Gi1/1? (Choose two.)

CCNA2 v7 Modules 1 – 4 Switching Concepts, VLANs, and InterVLAN Routing Exam Answers 43

Gi1/1 is in the default VLAN.
Voice VLAN is not assigned to Gi1/1.
Gi1/1 is configured as trunk mode.
Negotiation of trunking is turned on on Gi1/1.
The trunking encapsulation protocol is configured wrong.

Explanation: With legacy inter-VLAN routing methods, the switch ports that connect to the router should be configured as access mode and be assigned appropriate VLANs. In this scenario, the Gi1/1 interface should be in access mode with VLAN 10 assigned. The other options are default settings on the switch and have no effect on legacy inter-VLAN routing.

44. Refer to the exhibit. A network administrator is verifying the configuration of inter-VLAN routing. Users complain that PC2 cannot communicate with PC1. Based on the output, what is the possible cause of the problem?

CCNA2 v7 Modules 1 – 4 Switching Concepts, VLANs, and InterVLAN Routing Exam Answers 44

Gi0/0 is not configured as a trunk port.
The command interface GigabitEthernet0/0.5 was entered incorrectly.
There is no IP address configured on the interface Gi0/0.
The no shutdown command is not entered on subinterfaces.
The encapsulation dot1Q 5 command contains the wrong VLAN.

Explanation: In router-on-a-stick, the subinterface configuration should match the VLAN number in the encapsulation command, in this case, the command encapsulation dot1Q 10 should be used for VLAN 10. Since subinterfaces are used, there is no need to configure IP on the physical interface Gi0/0. The trunk mode is configured on the switch port that connects to the router. The subinterfaces are turned on when they are added.

45. Refer to the exhibit. A network administrator has configured router CiscoVille with the above commands to provide inter-VLAN routing. What type of port will be required on a switch that is connected to Gi0/0 on router CiscoVille to allow inter-VLAN routing?

routed port
access port
trunk port
SVI

Explanation: To allow a router-on-a-stick configuration to function, a switch must be connected to the router via a trunk port to carry the VLANs to be routed. An SVI would be used on a multilayer switch where the switch is performing inter-VLAN routing.

46. Refer to the exhibit. A network administrator is configuring RT1 for inter-VLAN routing. The switch is configured correctly and is functional. Host1, Host2, and Host3 cannot communicate with each other. Based on the router configuration, what is causing the problem?

CCNA2 v7 Modules 1 – 4 Switching Concepts, VLANs, and InterVLAN Routing Exam Answers 46

Interface Fa0/0 is missing IP address configuration information.
IP addresses on the subinterfaces are incorrectly matched to the VLANs.
Each subinterface of Fa0/0 needs separate no shutdown commands.
Routers do not support 802.1Q encapsulation on subinterfaces.

Explanation: Since Host 1 (in VLAN 20) has the IP 172.18.1.10/27, the subinterface Fa0/0.1 should be configured with an IP address in the network 172.168.1.0/27. Similarly, Fa0/0.2 should be with an IP address in the network 172.168.1.64/27 and Fa0/0.3 should be with an IP address in the network 172.168.1.96/27.

47. Refer to the exhibit. A router-on-a-stick configuration was implemented for VLANs 15, 30, and 45, according to the show running-config command output. PCs on VLAN 45 that are using the 172.16.45.0 /24 network are having trouble connecting to PCs on VLAN 30 in the 172.16.30.0 /24 network. Which error is most likely causing this problem?

CCNA2 v7 Modules 1 – 4 Switching Concepts, VLANs, and InterVLAN Routing Exam Answers 47

The wrong VLAN has been configured on GigabitEthernet 0/0.45.
The command no shutdown is missing on GigabitEthernet 0/0.30.
The GigabitEthernet 0/0 interface is missing an IP address.
There is an incorrect IP address configured on GigabitEthernet 0/0.30.

Explanation: he subinterface GigabitEthernet 0/0.30 has an IP address that does not correspond to the VLAN addressing scheme. The physical interface GigabitEthernet 0/0 does not need an IP address for the subinterfaces to function. Subinterfaces do not require the no shutdown command.

48. What is a characteristic of a routed port on a Layer 3 switch?

It supports trunking.
It is not assigned to a VLAN.
It is commonly used as a WAN link.
It cannot have an IP address assigned to it.

Explanation: A routed port on a Layer 3 switch is commonly used for connecting between distribution and core layer switches or between a Layer 3 switch and a router. This port does not get VLAN or trunking commands assigned to it. Instead, the port is programmed with an IP address. This is commonly used when static routing is configured on the switch or when a routing protocol is being run between the Layer 3 switch and the router or another Layer 3 switch.

49. Refer to the exhibit. A network administrator needs to configure router-on-a-stick for the networks that are shown. How many subinterfaces will have to be created on the router if each VLAN that is shown is to be routed and each VLAN has its own subinterface?

CCNA2 v7 Modules 1 – 4 Switching Concepts, VLANs, and InterVLAN Routing Exam Answers 49

Explanation: Based on the IP addresses and masks given, the PC, printer, IP phone, and switch management VLAN are all on different VLANs. This situation will require four subinterfaces on the router.

50. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# mdix auto command?

It automatically adjusts the port to allow device connections to use either a straight-through or a crossover cable.
It applies an IPv4 address to the virtual interface.
It applies an IPv6 address to the virtual interface.
It permits an IPv6 address to be configured on a switch physical interface.
It updates the MAC address table for the associated port.

51. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# ip address 172.18.33.88 255.255.255.0 command?

It applies an IPv4 address to the virtual interface.
It applies an IPv6 address to the virtual interface.
It activates a virtual or physical switch interface.
It permits an IPv6 address to be configured on a switch physical interface.
It updates the MAC address table for the associated port.

52. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw# configure terminal command?

It enters the global configuration mode.
It enters configuration mode for a switch virtual interface.
It applies an IPv4 address to the virtual interface.
It updates the MAC address table for the associated port.
It permits an IPv6 address to be configured on a switch physical interface.

53. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw# configure terminal command?

It enters the global configuration mode.
It saves the running configuration to NVRAM.
It disables a virtual or physical switch interface.
It updates the MAC address table for the associated port.
It saves the startup configuration to the running configuration.

54. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# shutdown command?

It disables a virtual or physical switch interface.
It saves the running configuration to NVRAM.
It activates a virtual or physical switch interface.
It updates the MAC address table for the associated port.
It saves the startup configuration to the running configuration.

55. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# shutdown command?

It disables a virtual or physical switch interface.
It applies an IPv6 address to the virtual interface.
It applies an IPv4 address to the virtual interface.
It permits an IPv6 address to be configured on a switch physical interface.
It updates the MAC address table for the associated port.

56. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# ipv6 address 2001:db8:a2b4:88::1/64 command?

It applies an IPv6 address to the virtual interface.
It activates a virtual or physical switch interface.
It applies an IPv4 address to the virtual interface.
It permits an IPv6 address to be configured on a switch physical interface.
It updates the MAC address table for the associated port.

57. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# exit command?

It returns to global configuration mode.
It returns to privileged mode.
It configures the default gateway for the switch.
It enters user mode.
It saves the startup configuration to the running configuration.

58. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw> enable command?

It enters privileged mode.
It enters the global configuration mode.
It enters configuration mode for a switch virtual interface.
It updates the MAC address table for the associated port.
It permits an IPv6 address to be configured on a switch physical interface.

58. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# duplex full command?

It allows data to flow in both directions at the same time on the interface.
It allows data to flow in only one direction at a time on the interface
It automatically adjusts the port to allow device connections to use either a straight-through or a crossover cable.
It configures the switch as the default gateway.
It encrypts user-mode passwords when users connect remotely.

60. What type of VLAN should not carry voice and network management traffic?

data VLAN
voice VLAN
management VLAN
security VLAN

62. What type of VLAN is designed to reserve bandwidth to ensure IP Phone quality?

voice VLAN
trunk VLAN
security VLAN
management VLAN

63. What type of VLAN is initially the management VLAN?

default VLAN
native VLAN
data VLAN
management VLAN

64. What type of VLAN is designed to have a delay of less than 150 ms across the network?

voice VLAN
desirable VLAN
trunk VLAN
security VLAN

65. What type of VLAN is used to separate the network into groups of users or devices?

data VLAN
management VLAN
voice VLAN
native VLAN

66. What type of VLAN is configured specifically for network traffic such as SSH, Telnet, HTTPS, HTTP, and SNMP?

management VLAN
security VLAN
trunk VLAN
voice VLAN

68. What type of VLAN supports untagged traffic?

native VLAN
voice VLAN
security VLAN
management VLAN

69. What type of VLAN supports untagged traffic?

native VLAN
desirable VLAN
trunk VLAN
security VLAN

70. Refer to the exhibit. A network administrator has configured R1 as shown. When the administrator checks the status of the serial interface, the interface is shown as being administratively down. What additional command must be entered on the serial interface of R1 to bring the interface up?

CCNA2 v7 Modules 1 – 4 Switching Concepts, VLANs, and InterVLAN Routing Exam Answers 70

IPv6 enable
clockrate 128000
end
no shutdown

Explanation: By default all router interfaces are shut down. To bring the interfaces up, an administrator must issue the no shutdown command in interface mode.

71. Refer to the exhibit. The network administrator wants to configure Switch1 to allow SSH connections and prohibit Telnet connections. How should the network administrator change the displayed configuration to satisfy the requirement?

CCNA2 v7 Modules 1 – 4 Switching Concepts, VLANs, and InterVLAN Routing Exam Answers 71

Use SSH version 1.
Reconfigure the RSA key.
Configure SSH on a different line.
Modify the transport input command.

72. Which solution would help a college alleviate network congestion due to collisions?

a firewall that connects to two Internet providers
a high port density switch
a router with two Ethernet ports
a router with three Ethernet ports

Explanation: Switches provide microsegmentation so that one device does not compete for the same Ethernet network bandwidth with another network device, thus practically eliminating collisions. A high port density switch provides very fast connectivity for many devices.

73. Which two statements are correct with respect to SVI inter-VLAN routing? (Choose two.)

Switching packets is faster with SVI.
There is no need for a connection to a router.
Virtual interfaces support subinterfaces.
SVIs can be bundled into EtherChannels.
SVIs eliminate the need for a default gateway in the hosts.

Explanation: The SVI inter-VLAN routing method is faster than other methods. The switch can route the existing VLANs without the need for a router.

74. Refer to the exhibit. A network administrator is configuring inter-VLAN routing on a network. For now, only one VLAN is being used, but more will be added soon. What is the missing parameter that is shown as the highlighted question mark in the graphic?

CCNA2 v7 Modules 1 – 4 Switching Concepts, VLANs, and InterVLAN Routing Exam Answers 74

It identifies the subinterface.
It identifies the VLAN number.
It identifies the native VLAN number.
It identifies the type of encapsulation that is used.
It identifies the number of hosts that are allowed on the interface.

Explanation: The completed command would be encapsulation dot1q 7. The encapsulation dot1q part of the command enables trunking and identifies the type of trunking to use. The 7 identifies the VLAN number.

75. Which type of VLAN is used to designate which traffic is untagged when crossing a trunk port?

data
default
native
management

Explanation: A native VLAN is the VLAN that does not receive a VLAN tag in the IEEE 802.1Q frame header. Cisco best practices recommend the use of an unused VLAN (not a data VLAN, the default VLAN of VLAN 1, or the management VLAN) as the native VLAN whenever possible.

76. A network administrator issues the show vlan brief command while troubleshooting a user support ticket. What output will be displayed?

the VLAN assignment and membership for device MAC addresses
the VLAN assignment and membership for all switch ports
the VLAN assignment and trunking encapsulation
the VLAN assignment and native VLAN

Explanation: The show vlan brief command will provide information displaying the VLAN assignment and membership for all switch ports on a switch.

77. Open the PT Activity. Perform the tasks in the activity instructions and then answer the question.

Which message is displayed when 10.10.10.1 is entered into the PC1 Web Browser address bar?

Local Server
Test Server
File Server
Cisco Server

Explanation: Examining the configuration of switch SW1 shows that interface Gi0/1 is not configured as a trunk. Issuing the interface configuration command switchport mode trunk on this interface will enable communications between PC1 and Server1.

78. Match each DHCP message type with its description. (Not all options are used.)

CCNA 2 v7 Modules 1 – 4: Switching Concepts, VLANs, and InterVLAN Routing Exam Answers

Explanation:Place the options in the following order:

a client initiating a message to find a DHCP server – DHCPDISCOVER
a DHCP server responding to the initial request by a client – DHCPOFFER
the client accepting the IP address provided by the DHCP server – DHCPREQUEST
the DHCP server confirming that the lease has been accepted – DHCPACK

79. What type of VLAN is configured specifically for network traffic such as SSH, Telnet, HTTPS, HHTP, and SNMP?

voice VLAN
management VLAN
native VLAN
security VLAN

Источник

CCNA 2 v7 Modules 1 – 4: Switching Concepts, VLANs, and InterVLAN Routing Full Exam Answers

1. Which tasks can be accomplished by using the command history feature? (Choose two.)

View a list of commands entered in a previous session.
Recall up to 15 command lines by default.
Set the command history buffer size.*
Recall previously entered commands.*
Save command lines in a log file for future reference.

2. What is the first action in the boot sequence when a switch is powered on?

load the default Cisco IOS software
load boot loader software
low-level CPU initialization
load a power-on self-test program*

3. What must an administrator have in order to reset a lost password on a router?

a TFTP server
a crossover cable
access to another router
physical access to the router*

4. When configuring a switch for SSH access, what other command that is associated with the login local command is required to be entered on the switch?

enable secret password
password password
username username secret secret*
login block-for seconds attempts number within*seconds*

5. Which command displays information about the auto-MDIX setting for a specific interface?

show interfaces
show controllers*
show processes
show running-config

6. If one end of an Ethernet connection is configured for full duplex and the other end of the connection is configured for half duplex, where would late collisions be observed?

on both ends of the connection
on the full-duplex end of the connection
only on serial interfaces
on the half-duplex end of the connection*

7. Which command is used to set the BOOT environment variable that defines where to find the IOS image file on a switch?

config-register
boot system*
boot loader
confreg

8. What does a switch use to locate and load the IOS image?

BOOT environment variable*
IOS image file
POST
startup-config
NVRAM

9. Which protocol adds security to remote connections?

FTP
HTTP
NetBEUI
POP
SSH*

10. What is a characteristic of an IPv4 loopback interface on a Cisco IOS router?

The no shutdown command is required to place this interface in an UP state.
It is a logical interface internal to the router.*
Only one loopback interface can be enabled on a router.
It is assigned to a physical port and can be connected to other devices.

11. What is the minimum Ethernet frame size that will not be discarded by the receiver as a runt frame?

64 bytes*
512 bytes
1024 bytes
1500 bytes

12. After which step of the switch bootup sequence is the boot loader executed?

after CPU initialization
after IOS localization
after flash file system initialization
after POST execution*

13. Which impact does adding a Layer 2 switch have on a network?

an increase in the number of dropped frames
an increase in the size of the broadcast domain*
an increase in the number of network collisions
an increase in the size of the collision domain

14. Which characteristic describes cut-through switching?

Error-free fragments are forwarded, so switching occurs with lower latency.
Frames are forwarded without any error checking.*
Only outgoing frames are checked for errors.
Buffering is used to support different Ethernet speeds.

15. What is the significant difference between a hub and a Layer 2 LAN switch?

A hub extends a collision domain, and a switch divides collision domains.*
A hub divides collision domains, and a switch divides broadcast domains.
Each port of a hub is a collision domain, and each port of a switch is a broadcast domain.
A hub forwards frames, and a switch forwards only packets.

16. Which statement is correct about Ethernet switch frame forwarding decisions?

Frame forwarding decisions are based on MAC address and port mappings in the CAM table.*
Cut-through frame forwarding ensures that invalid frames are always dropped.
Only frames with a broadcast destination address are forwarded out all active switch ports.
Unicast frames are always forwarded regardless of the destination MAC address.

17. How do switch buffers affect network performance?

They provide error checking on the data received.
They store frames received, thus preventing premature frame discarding when network congestion occurs.*
They provide extra memory for a particular port if autonegotiation of speed or duplex fails.
They hold data temporarily when a collision occurs until normal data transmission resumes.

18. Which switch characteristic helps keep traffic local and alleviates network congestion?

high port density*
fast port speed
large frame buffers
fast internal switching

19. Which switch component reduces the amount of packet handling time inside the switch?

ASIC*
dual processors
large buffer size
store-and-forward RAM

20. Refer to the exhibit. A switch receives a Layer 2 frame that contains a source MAC address of 000b.a023.c501 and a destination MAC address of 0050.0fae.75aa. Place the switch steps in the order they occur. (Not all options are used.)

CCNA 2 v7.0 Modules 1 – 4 Exam Answers p20-2

21. What information is added to the switch table from incoming frames?

source MAC address and incoming port number*
destination MAC address and incoming port number
source IP address and incoming port number
destination IP address and incoming port number

22. Which switching method ensures that the incoming frame is error-free before forwarding?

cut-through
FCS
fragment free
store-and-forward*

23. Refer to the exhibit.

CCNA 2 v7.0 Modules 1 – 4 Exam Answers p23

How many broadcast domains are displayed?

1
4
8*
16
55

24. Under which two occasions should an administrator disable DTP while managing a local area network? (Choose two.)

when connecting a Cisco switch to a non-Cisco switch*
when a neighbor switch uses a DTP mode of dynamic auto
when a neighbor switch uses a DTP mode of dynamic desirable
on links that should not be trunking*
on links that should dynamically attempt trunking

25. Which two characteristics describe the native VLAN? (Choose two.)

Designed to carry traffic that is generated by users, this type of VLAN is also known as the default VLAN.
The native VLAN traffic will be untagged across the trunk link.*
This VLAN is necessary for remote management of a switch.
High priority traffic, such as voice traffic, uses the native VLAN.
The native VLAN provides a common identifier to both ends of a trunk.*

26. On a switch that is configure0d with multiple VLANs, which command will remove only VLAN 100 from the switch?

Switch# delete flash:vlan.dat
Switch(config-if)# no switchport access vlan 100
Switch(config-if)# no switchport trunk allowed vlan 100
Switch(config)# no vlan 100*

27. Refer to the exhibit.

CCNA 2 v7.0 Modules 1 – 4 Exam Answers p27

A network administrator is reviewing port and VLAN assignments on switch S2 and notices that interfaces Gi0/1 and Gi0/2 are not included in the output. Why would the interfaces be missing from the output?

There is a native VLAN mismatch between the switches.
There is no media connected to the interfaces.
They are administratively shut down.
They are configured as trunk interfaces.*

28. A network contains multiple VLANs spanning multiple switches. What happens when a device in VLAN 20 sends a broadcast Ethernet frame?

All devices in all VLANs see the frame.
Devices in VLAN 20 and the management VLAN see the frame.
Only devices in VLAN 20 see the frame.*
Only devices that are connected to the local switch see the frame.

29. Refer to the exhibit.

CCNA 2 v7.0 Modules 1 – 4 Exam Answers p29

All workstations are configured correctly in VLAN 20. Workstations that are connected to switch SW1 are not able to send traffic to workstations on SW2. What could be done to remedy the problem?

Allow VLAN 20 on the trunk link.*
Enable DTP on both ends of the trunk.
Configure all workstations on SW1 to be part of the default VLAN.
Configure all workstations on SW2 to be part of the native VLAN.

30. What happens to switch ports after the VLAN to which they are assigned is deleted?

The ports are disabled.
The ports are placed in trunk mode.
The ports are assigned to VLAN1, the default VLAN.
The ports stop communicating with the attached devices.*

31. Match the IEEE 802.1Q standard VLAN tag field with the description. (Not all options are used.)

CCNA 2 v7.0 Modules 1 – 4 Exam Answers p31

Explanation: The IEEE 802.1Q standard header includes a 4-byte VLAN tag:
Type – A 2-byte value called the tag protocol ID (TPID) value.
User priority – A 3-bit value that supports level or service implementation.
Canonical Format Identifier (CFI) – A 1-bit identifier that enables Token Ring frames to be carried across Ethernet links.
VLAN ID (VID) – A 12-bit VLAN identification number that supports up to 4096 VLAN IDs.

32. Refer to the exhibit.

CCNA 2 v7.0 Modules 1 – 4 Exam Answers p32

In what switch mode should port G0/1 be assigned if Cisco best practices are being used?

access
trunk*
native
auto

33. Match the DTP mode with its function. (Not all options are used.)

CCNA 2 v7.0 Modules 1 – 4 Exam Answers p33

34. Port Fa0/11 on a switch is assigned to VLAN 30. If the command no switchport access vlan 30 is entered on the Fa0/11 interface, what will happen?

Port Fa0/11 will be shutdown.
An error message would be displayed.
Port Fa0/11 will be returned to VLAN 1.*
VLAN 30 will be deleted.

35. Which command displays the encapsulation type, the voice VLAN ID, and the access mode VLAN for the Fa0/1 interface?

show vlan brief
show interfaces Fa0/1 switchport*
show mac address-table interface Fa0/1
show interfaces trunk

36. Refer to the exhibit.

CCNA 2 v7.0 Modules 1 – 4 Exam Answers p36

A technician is programming switch SW3 to manage voice and data traffic through port Fa0/20. What, if anything, is wrong with the configuration?

There is nothing wrong with the configuration.
Interface Fa0/20 can only have one VLAN assigned.
The mls qos trust cos command should reference VLAN 35.
The command used to assign the voice VLAN to the switch port is incorrect.*

37. Which four steps are needed to configure a voice VLAN on a switch port? (Choose four).

Configure the interface as an IEEE 802.1Q trunk.
Assign the voice VLAN to the switch port.*
Activate spanning-tree PortFast on the interface.
Ensure that voice traffic is trusted and tagged with a CoS priority value.*
Add a voice VLAN.*
Configure the switch port interface with subinterfaces.
Assign a data VLAN to the switch port.
Configure the switch port in access mode.*

38. Refer to the exhibit.

CCNA 2 v7.0 Modules 1 – 4 Exam Answers p38

PC1 is unable to communicate with server 1. The network administrator issues the show interfaces trunk command to begin troubleshooting. What conclusion can be made based on the output of this command?

Interface G0/2 is not configured as a trunk.*
VLAN 20 has not been created.
The encapsulation on interface G0/1 is incorrect.
The DTP mode is incorrectly set to dynamic auto on interface G0/1.

39. Refer to the exhibit.

CCNA 2 v7.0 Modules 1 – 4 Exam Answers p39

What is the cause of the error that is displayed in the configuration of inter-VLAN routing on router CiscoVille?

The gig0/0 interface does not support inter-VLAN routing.
The no shutdown command has not been configured.
The IP address on CiscoVille is incorrect.
The encapsulation dot1Q 20 command has not been configured.*

40. Refer to the exhibit.

CCNA 2 v7.0 Modules 1 – 4 Exam Answers p40

A network administrator has configured router CiscoVille with the above commands to provide inter-VLAN routing. What command will be required on a switch that is connected to the Gi0/0 interface on router CiscoVille to allow inter-VLAN routing?

switchport mode access
no switchport
switchport mode trunk*
switchport mode dynamic desirable

41. A high school uses VLAN15 for the laboratory network and VLAN30 for the faculty network. What is required to enable communication between these two VLANs while using the router-on-a-stick approach?

A multilayer switch is needed.
A router with at least two LAN interfaces is needed.
Two groups of switches are needed, each with ports that are configured for one VLAN.
A switch with a port that is configured as a trunk is needed when connecting to the router.*

42. When routing a large number of VLANs, what are two disadvantages of using the router-on-a-stick inter-VLAN routing method rather than the multilayer switch inter-VLAN routing method? (Choose two.)

Multiple SVIs are needed.
A dedicated router is required.*
Router-on-a-stick requires subinterfaces to be configured on the same subnets.
Router-on-a-stick requires multiple physical interfaces on a router.
Multiple subinterfaces may impact the traffic flow speed.*

43. Refer to the exhibit.

CCNA 2 v7.0 Modules 1 – 4 Exam Answers p43

A network administrator is verifying the configuration of inter-VLAN routing. Users complain that PCs on different VLANs cannot communicate. Based on the output, what are two configuration errors on switch interface Gi1/1? (Choose two.)

Gi1/1 is in the default VLAN.*
Voice VLAN is not assigned to Gi1/1.
Gi1/1 is configured as trunk mode.*
Negotiation of trunking is turned on on Gi1/1.
The trunking encapsulation protocol is configured wrong.

44. Refer to the exhibit.

CCNA 2 v7.0 Modules 1 – 4 Exam Answers p44

A network administrator is verifying the configuration of inter-VLAN routing. Users complain that PC2 cannot communicate with PC1. Based on the output, what is the possible cause of the problem?

Gi0/0 is not configured as a trunk port.
The command interface GigabitEthernet0/0.5 was entered incorrectly.
There is no IP address configured on the interface Gi0/0.
The no shutdown command is not entered on subinterfaces.
The encapsulation dot1Q 5 command contains the wrong VLAN. *

45. Refer to the exhibit.

CCNA 2 v7.0 Modules 1 – 4 Exam Answers p45

A network administrator has configured router CiscoVille with the above commands to provide inter-VLAN routing. What type of port will be required on a switch that is connected to Gi0/0 on router CiscoVille to allow inter-VLAN routing?

routed port
access port
trunk port*
SVI

46. Refer to the exhibit.

CCNA 2 v7.0 Modules 1 – 4 Exam Answers p46

A network administrator is configuring RT1 for inter-VLAN routing. The switch is configured correctly and is functional. Host1, Host2, and Host3 cannot communicate with each other. Based on the router configuration, what is causing the problem?

Interface Fa0/0 is missing IP address configuration information.
IP addresses on the subinterfaces are incorrectly matched to the VLANs.*
Each subinterface of Fa0/0 needs separate no shutdown commands.
Routers do not support 802.1Q encapsulation on subinterfaces.

47. Refer to the exhibit.

CCNA 2 v7.0 Modules 1 – 4 Exam Answers p47

A router-on-a-stick configuration was implemented for VLANs 15, 30, and 45, according to the show running-config command output. PCs on VLAN 45 that are using the 172.16.45.0 /24 network are having trouble connecting to PCs on VLAN 30 in the 172.16.30.0 /24 network. Which error is most likely causing this problem?

The wrong VLAN has been configured on GigabitEthernet 0/0.45.
The command no shutdown is missing on GigabitEthernet 0/0.30.
The GigabitEthernet 0/0 interface is missing an IP address.
There is an incorrect IP address configured on GigabitEthernet 0/0.30.*

48. What is a characteristic of a routed port on a Layer 3 switch?

It supports trunking.
It is not assigned to a VLAN.*
It is commonly used as a WAN link.
It cannot have an IP address assigned to it.

49. Refer to the exhibit.

CCNA 2 v7.0 Modules 1 – 4 Exam Answers p49

A network administrator needs to configure router-on-a-stick for the networks that are shown. How many subinterfaces will have to be created on the router if each VLAN that is shown is to be routed and each VLAN has its own subinterface?

1
2
3
4*
5

50. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# mdix auto command?

It automatically adjusts the port to allow device connections to use either a straight-through or a crossover cable.*
It applies an IPv4 address to the virtual interface.
It applies an IPv6 address to the virtual interface.
It permits an IPv6 address to be configured on a switch physical interface.
It updates the MAC address table for the associated port.

51. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# ip address 172.18.33.88 255.255.255.0 command?

It applies an IPv4 address to the virtual interface.*
It applies an IPv6 address to the virtual interface.
It activates a virtual or physical switch interface.
It permits an IPv6 address to be configured on a switch physical interface.
It updates the MAC address table for the associated port.

52. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw# configure terminal command?

It enters the global configuration mode.*
It enters configuration mode for a switch virtual interface.
It applies an IPv4 address to the virtual interface.
It updates the MAC address table for the associated port.
It permits an IPv6 address to be configured on a switch physical interface.

53. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw# configure terminal command?

It enters the global configuration mode.*
It saves the running configuration to NVRAM.
It disables a virtual or physical switch interface.
It updates the MAC address table for the associated port.
It saves the startup configuration to the running configuration.

54. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# shutdown command?

It disables a virtual or physical switch interface.*
It saves the running configuration to NVRAM.
It activates a virtual or physical switch interface.
It updates the MAC address table for the associated port.
It saves the startup configuration to the running configuration.

55. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# shutdown command?

It disables a virtual or physical switch interface.*
It applies an IPv6 address to the virtual interface.
It applies an IPv4 address to the virtual interface.
It permits an IPv6 address to be configured on a switch physical interface.
It updates the MAC address table for the associated port.

56. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# ipv6 address 2001:db8:a2b4:88::1/64 command?

It applies an IPv6 address to the virtual interface.*
It activates a virtual or physical switch interface.
It applies an IPv4 address to the virtual interface.
It permits an IPv6 address to be configured on a switch physical interface.
It updates the MAC address table for the associated port.

57. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# exit command?

It returns to global configuration mode.*
It returns to privileged mode.
It configures the default gateway for the switch.
It enters user mode.
It saves the startup configuration to the running configuration.

58. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw> enable command?

It enters privileged mode.*
It enters the global configuration mode.
It enters configuration mode for a switch virtual interface.
It updates the MAC address table for the associated port.
It permits an IPv6 address to be configured on a switch physical interface.

58. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# duplex full command?

It allows data to flow in both directions at the same time on the interface.*
It allows data to flow in only one direction at a time on the interface
It automatically adjusts the port to allow device connections to use either a straight-through or a crossover cable.
It configures the switch as the default gateway.
It encrypts user-mode passwords when users connect remotely.

60. What type of VLAN should not carry voice and network management traffic?

data VLAN*
voice VLAN
management VLAN
security VLAN

61. What type of VLAN should not carry voice and network management traffic?

data VLAN*
trunk VLAN
security VLAN
voice VLAN

62. What type of VLAN is designed to reserve bandwidth to ensure IP Phone quality?

voice VLAN*
trunk VLAN
security VLAN
management VLAN

63. What type of VLAN is initially the management VLAN?

default VLAN*
native VLAN
data VLAN
management VLAN

64. What type of VLAN is designed to have a delay of less than 150 ms across the network?

voice VLAN*
desirable VLAN
trunk VLAN
security VLAN

65. What type of VLAN is used to separate the network into groups of users or devices?

data VLAN*
management VLAN
voice VLAN
native VLAN

66. What type of VLAN is configured specifically for network traffic such as SSH, Telnet, HTTPS, HHTP, and SNMP?

management VLAN*
security VLAN
trunk VLAN
voice VLAN

67. What type of VLAN is configured specifically for network traffic such as SSH, Telnet, HTTPS, HHTP, and SNMP?

management VLAN*
voice VLAN
security VLAN
native VLAN

68. What type of VLAN supports untagged traffic?

native VLAN*
voice VLAN
security VLAN
management VLAN

69. What type of VLAN supports untagged traffic?

native VLAN*
desirable VLAN
trunk VLAN
security VLAN

70. Refer to the exhibit.

CCNA 2 v7.0 Modules 1 – 4 Exam Answers p70

A network administrator has configured R1 as shown. When the administrator checks the status of the serial interface, the interface is shown as being administratively down. What additional command must be entered on the serial interface of R1 to bring the interface up?

IPv6 enable
clockrate 128000
end
no shutdown*

71. Refer to the exhibit.

CCNA 2 v7.0 Modules 1 – 4 Exam Answers p71

The network administrator wants to configure Switch1 to allow SSH connections and prohibit Telnet connections. How should the network administrator change the displayed configuration to satisfy the requirement?

Use SSH version 1.
Reconfigure the RSA key.
Configure SSH on a different line.
Modify the transport input command.*

72. Which solution would help a college alleviate network congestion due to collisions?

a firewall that connects to two Internet providers
a high port density switch*
a router with two Ethernet ports
a router with three Ethernet ports

73. Which two statements are correct with respect to SVI inter-VLAN routing? (Choose two.)

Switching packets is faster with SVI.*
There is no need for a connection to a router.*
Virtual interfaces support subinterfaces.
SVIs can be bundled into EtherChannels.
SVIs eliminate the need for a default gateway in the hosts.

74. Refer to the exhibit.

CCNA 2 v7.0 Modules 1 – 4 Exam Answers p74

A network administrator is configuring inter-VLAN routing on a network. For now, only one VLAN is being used, but more will be added soon. What is the missing parameter that is shown as the highlighted question mark in the graphic?

It identifies the subinterface.
It identifies the VLAN number.*
It identifies the native VLAN number.
It identifies the type of encapsulation that is used.
It identifies the number of hosts that are allowed on the interface.

75. Which type of VLAN is used to designate which traffic is untagged when crossing a trunk port?

data
default
native*
management

76. A network administrator issues the show vlan brief command while troubleshooting a user support ticket. What output will be displayed?

the VLAN assignment and membership for device MAC addresses
the VLAN assignment and membership for all switch ports*
the VLAN assignment and trunking encapsulation
the VLAN assignment and native VLAN

77. Open the PT Activity. Perform the tasks in the activity instructions and then answer the question.

CCNA 2 v7.0 Modules 1 – 4 Exam Answers p77

Which message is displayed when 10.10.10.1 is entered into the PC1 Web Browser address bar?

Local Server
Test Server
File Server*
Cisco Server

78. Match each DHCP message type with its description. (Not all options are used.)

CCNA 2 v7.0 Modules 1 – 4 Exam Answers p78

Explanation:Place the options in the following order:
a client initiating a message to find a DHCP server – DHCPDISCOVER
a DHCP server responding to the initial request by a client – DHCPOFFER
the client accepting the IP address provided by the DHCP server – DHCPREQUEST
the DHCP server confirming that the lease has been accepted – DHCPACK

Источник

CCNA 2 v7 Modules 1 – 4: Switching Concepts,
VLANs, and InterVLAN Routing Exam Answers

Q(1). Which tasks can be
accomplished by using the command history feature? (Choose two.)

(a) View a list of commands entered in a
previous session.

(b) Recall up to 15 command lines by
default.

(c) Set the command history buffer size. ✓

(d) Recall previously entered commands. ✓

(e) Save command lines in a log file for
future reference.

Correct Answer: (c) & (d)

Explanation:

No answer description available for this question

Q(2). What is the first action in the boot
sequence when a switch is powered on?

(a) load the default Cisco IOS software

(b) load boot loader software

(d) load a power-on self-test program ✓

Correct Answer: (d)

Explanation:

No answer description available for this question

Q(3). What must an administrator have in
order to reset a lost password on a router?

(a) a TFTP server

(b) a crossover cable

(d) physical access to the router ✓

Correct Answer: (d)

Explanation:

No answer description available for this question

Q(4). When configuring a switch for SSH
access, what other command that is associated with the login local command is
required to be entered on the switch?

(a) enable secret password

(b) password password

(c) username username secret secret ✓

(d) login block-for seconds attempts number within*seconds*

Correct Answer: (c)

Explanation:

No answer description available for this question

Q(5). Which command displays information
about the auto-MDIX setting for a specific interface?

(a) show interfaces

(b) show controllers ✓

(d) show running-config

Correct Answer: (b)

Explanation:

To examine the auto-MDIX setting for a specific interface, the show
controllers ethernet-controller command with the phy keyword
should be used.

Q(6). If one end of an Ethernet connection
is configured for full duplex and the other end of the connection is configured
for half duplex, where would late collisions be observed?

(a) on both ends of the connection

(b) on the full-duplex end of the
connection

(d) on the half-duplex end of the
connection ✓

Correct Answer: (d)

Explanation:

Full-duplex communications do not produce collisions. However,
collisions often occur in half-duplex operations. When a connection has two
different duplex configurations, the half-duplex end will experience late
collisions. Collisions are found on Ethernet networks. Serial interfaces use
technologies other than Ethernet.

Q(7). Which command is used to set the BOOT
environment variable that defines where to find the IOS image file on a switch?

(a) config-register

(b) boot system ✓

(d) confreg

Correct Answer: (b)

Explanation:

The boot system command is used to set the BOOT
environment variable. The config-register and confreg commands
are used to set the configuration register. The boot loader command
supports commands to format the flash file system, reinstall the operating
system software, and recover from a lost or forgotten password.

Q(8). What does a switch use to locate and
load the IOS image?

(a) BOOT environment variable ✓

(b) IOS image file

(d) startup-config

(e) NVRAM

Correct Answer: (a)

Explanation:

The BOOT environment variable contains the information about where to
find the IOS image file.

Q(9). Which protocol adds security to
remote connections?

(a) FTP

(b) HTTP

(d) POP

(e) SSH ✓

Correct Answer: (e)

Explanation:

No answer description available for this question

Q(10). What is a characteristic of an IPv4
loopback interface on a Cisco IOS router?

(a) The no shutdown command is
required to place this interface in an UP state.

(b) It is a logical interface internal to
the router. ✓

(d) It is assigned to a physical port and
can be connected to other devices.

Correct Answer: (b)

Explanation:

No answer description available for this question

Q(11). What is the minimum Ethernet frame
size that will not be discarded by the receiver as a runt frame?

(a) 64 bytes ✓

(b) 512 bytes

(d) 1500 bytes

Correct Answer: (a)

Explanation:

The minimum Ethernet frame size is 64 bytes. Frames smaller than 64
bytes are considered collision fragments or runt frames and are discarded.

Q(12). After which step of the switch bootup
sequence is the boot loader executed?

(a) after CPU initialization

(b) after IOS localization

(d) after POST execution ✓

Correct Answer: (d)

Explanation:

The correct bootup sequence order is as follows:
1. The switch loads and executes the POST.
2. The switch loads the boot loader software.
3. The boot loader performs low-level CPU initialization.
4. The boot loader initializes the flash memory.
5. The boot loader locates and loads the default IOS image.

Q(13). Which impact does adding a Layer 2
switch have on a network?

(a) an increase in the number of dropped
frames

(b) an increase in the size of the
broadcast domain ✓

(d) an increase in the size of the
collision domain

Correct Answer: (b)

Explanation:

Adding a Layer 2 switch to a network increases the number of collision
domains and increases the size of the broadcast domain. Layer 2 switches do not
decrease the amount of broadcast traffic, do not increase the amount of network
collisions and do not increase the number of dropped frames.

Q(14). Which characteristic describes
cut-through switching?

(a) Error-free fragments are forwarded, so
switching occurs with lower latency.

(b) Frames are forwarded without any error
checking. ✓

(d) Buffering is used to support different
Ethernet speeds.

Correct Answer: (b)

Explanation:

Cut-through switching reduces latency by forwarding frames as soon as
the destination MAC address and the corresponding switch port are read from the
MAC address table. This switching method does not perform any error checking
and does not use buffers to support different Ethernet speeds. Error checking
and buffers are characteristics of store-and-forward switching.

Q(15). What is the significant difference
between a hub and a Layer 2 LAN switch?

(a) A hub extends a collision domain, and
a switch divides collision domains. ✓

(b) A hub divides collision domains, and a
switch divides broadcast domains.

(d) A hub forwards frames, and a switch
forwards only packets.

Correct Answer: (a)

Explanation:

Hubs operate only at the physical layer, forwarding bits as wire
signals out all ports, and extend the collision domain of a network. Switches
forward frames at the data link layer and each switch port is a separate
collision domain which creates more, but smaller, collision domains. Switches
do not manage broadcast domains because broadcast frames are always forwarded
out all active ports.

Q(16). Which statement is
correct about Ethernet switch frame forwarding decisions?

(a) Frame forwarding decisions are based
on MAC address and port mappings in the CAM table. ✓

(b) Cut-through frame forwarding ensures
that invalid frames are always dropped.

(d) Unicast frames are always forwarded
regardless of the destination MAC address.

Correct Answer: (a)

Explanation:

Cut-through frame forwarding reads up to only the first 22 bytes of a
frame, which excludes the frame check sequence and thus invalid frames may be
forwarded. In addition to broadcast frames, frames with a destination MAC
address that is not in the CAM are also flooded out all active ports. Unicast
frames are not always forwarded. Received frames with a destination MAC address
that is associated with the switch port on which it is received are not
forwarded because the destination exists on the network segment connected to
that port.

Q(17). How do switch buffers affect network
performance?

(a) They provide error checking on the
data received.

(b) They store frames received, thus
preventing premature frame discarding when network congestion occurs. ✓

(d) They hold data temporarily when a
collision occurs until normal data transmission resumes.

Correct Answer: (b)

Explanation:

Switches have large frame buffers that allow data waiting to be
transmitted to be stored so the data will not be dropped. This feature is
beneficial especially if the incoming traffic is from a faster port than the
egress port used for transmitting.

Q(18). Which switch characteristic helps keep
traffic local and alleviates network congestion?

(a) high port density ✓

(b) fast port speed

(d) fast internal switching

Correct Answer: (a)

Explanation:

Switches that have a lot of ports (high port density) reduce the number
of switches required and keep some of the traffic locally on the switch, thus
removing the need to send it between switches.

Q(19). Which switch component reduces the
amount of packet handling time inside the switch?

(a) ASIC ✓

(b) dual processors

(d) store-and-forward RAM

Correct Answer: (a)

Explanation:

Application-specific integrated circuits (ASICs) are used in Cisco
switches to speed up switch operations so that the switch can have an increased
number of ports without degrading switch performance.

Q(20). Refer to the exhibit. A switch
receives a Layer 2 frame that contains a source MAC address of 000b.a023.c501
and a destination MAC address of 0050.0fae.75aa. Place the switch steps in the
order they occur. (Not all options are used.)

Correct Answer

Explanation:

The first step a switch does when processing a frame is to see if the
source MAC address is in the MAC address table. If the address is not there,
the switch adds it. The switch then examines the destination MAC address and
compares it to the MAC address table. If the address is in the table, the
switch forwards the frame out the corresponding port. If the address is missing
from the table, the switch will forward the frame to all ports except the port
through which the frame arrived.

Q(21). What information is
added to the switch table from incoming frames?

(a) source MAC address and incoming port
number ✓

(b) destination MAC address and incoming
port number

(d) destination IP address and incoming
port number

Correct Answer: (a)

Explanation:

A switch “learns” or builds the MAC address table based on the source
MAC address as a frame comes into the switch. A switch forwards the frame
onward based on the destination MAC address.

Q(22). Which switching method ensures that
the incoming frame is error-free before forwarding?

(a) cut-through

(b) FCS

(d) store-and-forward ✓

Correct Answer: (d)

Explanation:

Two methods used by switches to transmit frames are store-and-forward
and cut-through switching. The store-and-forward method performs error checking
on the frame using the frame check sequence (FCS) value before sending the
frame. In contrast, cut-through switching sends the frame as soon as the
destination MAC address part of the header has been read and processed.

Q(23). Refer to the exhibit. How many
broadcast domains are displayed?

(a) 1

(b) 4

(c) 8 ✓

(d) 16

(e) 55

Correct Answer: (c)

Explanation:

A router defines a broadcast boundary, so every link between two routers
is a broadcast domain. In the exhibit, 4 links between routers make 4 broadcast
domains. Also, each LAN that is connected to a router is a broadcast domain.
The 4 LANs in the exhibit result in 4 more broadcast domains, so there are 8
broadcast domains in all.

Q(24). Under which two occasions should an
administrator disable DTP while managing a local area network? (Choose two.)

(a) when connecting a Cisco switch to a
non-Cisco switch ✓

(b) when a neighbor switch uses a DTP mode
of dynamic auto

(d) on links that should not be trunking ✓

(e) on links that should dynamically
attempt trunking

Correct Answer: (a) & (d)

Explanation:

Cisco best practice recommends disabling DTP on links where trunking is
not intended and when a Cisco switch is connected to a non-Cisco switch. DTP is
required for dynamic trunk negotiation.

Q(25). Which two characteristics describe the
native VLAN? (Choose two.)

(a) Designed to carry traffic that is
generated by users, this type of VLAN is also known as the default VLAN.

(b) The native VLAN traffic will be
untagged across the trunk link. ✓

(d) High priority traffic, such as voice
traffic, uses the native VLAN.

(e) The native VLAN provides a common
identifier to both ends of a trunk. ✓

Correct Answer: (b) & (e)

Explanation:

The native VLAN is assigned to 802.1Q trunks to provide a common
identifier to both ends of the trunk link. Whatever VLAN native number is
assigned to a port, or if the port is the default VLAN of 1, the port does not
tag any frame in that VLAN as the traffic travels across the trunk. At the
other end of the link, the receiving device that sees no tag knows the specific
VLAN number because the receiving device must have the exact native VLAN
number. The native VLAN should be an unused VLAN that is distinct from VLAN1,
the default VLAN, as well as other VLANs. Data VLANs, also known as user VLANs,
are configured to carry user-generated traffic, with the exception of high
priority traffic, such as VoIP. Voice VLANs are configured for VoIP traffic.
The management VLAN is configured to provide access to the management
capabilities of a switch.

Q(26). On a switch that is configured with
multiple VLANs, which command will remove only VLAN 100 from the switch?

(a) Switch# delete flash:vlan.dat

(b) Switch(config-if)# no switchport
access vlan 100

(d) Switch(config)# no vlan 100 ✓

Correct Answer: (d)

Explanation:

To remove all VLANs from a switch, the delete flash:vlan.dat command
would be used. To change the assigned VLAN for an interface, the no switchport
access vlan 100 interface configuration command would be used. To remove VLAN
100 as an allowed VLAN on a trunk, the no switchport trunk allowed vlan 100
would be used, but this would not remove the VLAN from the switch. To delete a
single VLAN, such as VLAN 100, the no vlan 100 global configuration command
would be used.

Q(27). Refer to the exhibit.
A network administrator is reviewing port and VLAN assignments on switch S2 and
notices that interfaces Gi0/1 and Gi0/2 are not included in the output. Why
would the interfaces be missing from the output?

(a) There is a native VLAN mismatch
between the switches.

(b) There is no media connected to the
interfaces.

(d) They are configured as trunk
interfaces. ✓

Correct Answer: (d)

Explanation:

Interfaces that are configured as trunks do not belong to a VLAN and
therefore will not show in the output of the show vlan brief commands.

Q(28). A network contains multiple VLANs
spanning multiple switches. What happens when a device in VLAN 20 sends a
broadcast Ethernet frame?

(a) All devices in all VLANs see the
frame.

(b) Devices in VLAN 20 and the management
VLAN see the frame.

(c) Only devices in VLAN 20 see the frame. ✓

(d) Only devices that are connected to the
local switch see the frame.

Correct Answer: (c)

Explanation:

VLANs create logical broadcast domains that can span multiple VLAN
segments. Ethernet frames that are sent by a device on a specific VLAN can only
be seen by other devices in the same VLAN.

Q(29). Refer to the exhibit. All workstations
are configured correctly in VLAN 20. Workstations that are connected to switch
SW1 are not able to send traffic to workstations on SW2. What could be done to
remedy the problem?

(a) Allow VLAN 20 on the trunk link. ✓

(b) Enable DTP on both ends of the trunk.

(d) Configure all workstations on SW2 to
be part of the native VLAN.

Correct Answer: (a)

Explanation:

Enabling DTP on both switches simply allows negotiation of trunking.
The “Negotiation of Trunking” line in the graphic shows that DTP is already
enabled. The graphic also shows how the native VLAN is 1, and the default VLAN
for any Cisco switch is 1. The graphic shows the PCs are to be in VLAN 20.

Q(30). What happens to switch ports after the
VLAN to which they are assigned is deleted?

(a) The ports are disabled.

(b) The ports are placed in trunk mode.

(d) The ports stop communicating with the
attached devices. ✓

Correct Answer: (d)

Explanation:

The affected ports must be reconfigured for an active VLAN.

Q(31). Match the IEEE 802.1Q standard VLAN
tag field with the description. (Not all options are used.)

Explanation:

The IEEE 802.1Q standard header includes a 4-byte VLAN tag:

·
Type – A 2-byte value called the tag protocol ID
(TPID) value.

·
User priority – A 3-bit value that supports level or service
implementation.

·
Canonical Format Identifier
(CFI) – A 1-bit identifier
that enables Token Ring frames to be carried across Ethernet links.

·
VLAN ID (VID) – A 12-bit VLAN identification number that
supports up to 4096 VLAN IDs.

Q(32). Refer to the exhibit.
In what switch mode should port G0/1 be assigned if Cisco best practices are
being used?

(a) access

(b) trunk ✓

(d) auto

Correct Answer: (b)

Explanation:

The router is used to route between the two VLANs, thus switch port
G0/1 needs to be configured in trunk mode.

Q(33). Match the DTP mode with its
function. (Not all options are used.)

Correct Answer

Explanation:

The dynamic auto mode makes the interface become a trunk interface if
the neighboring interface is set to trunk or desirable mode. The dynamic
desirable mode makes the interface actively attempt to convert the link to a
trunk link. The trunk mode puts the interface into permanent trunking mode and
negotiates to convert the neighboring link into a trunk link. The nonegotiate
mode prevents the interface from generating DTP frames.

Q(34). Port Fa0/11 on a switch is assigned to
VLAN 30. If the command no switchport access vlan 30 is entered on the Fa0/11
interface, what will happen?

(a) Port Fa0/11 will be shutdown.

(b) An error message would be displayed.

(c) Port Fa0/11 will be returned to VLAN
1. ✓

(d) VLAN 30 will be deleted.

Correct Answer: (c)

Explanation:

When the no switchport access vlan command is entered,
the port is returned to the default VLAN 1. The port will remain active as a
member of VLAN 1, and VLAN 30 will still be intact, even if no other ports are
associated with it.

Q(35). Which command displays the encapsulation
type, the voice VLAN ID, and the access mode VLAN for the Fa0/1 interface?

(a) show vlan brief

(b) show interfaces Fa0/1 switchport ✓

(d) show interfaces trunk

Correct Answer: (b)

Explanation:

The show interfaces switchport command displays the
following information for a given port:
Switchport
Administrative Mode
Operational Mode
Administrative Trunking Encapsulation
Operational Trunking Encapsulation
Negotiation of Trunking
Access Mode VLAN
Trunking Native Mode VLAN
Administrative Native VLAN tagging
Voice VLAN

Q(36). Refer to the exhibit.
A technician is programming switch SW3 to manage voice and data traffic through
port Fa0/20. What, if anything, is wrong with the configuration?

(a) There is nothing wrong with the configuration.

(b) Interface Fa0/20 can only have one
VLAN assigned.

(d) The command used to assign the voice
VLAN to the switch port is incorrect. ✓

Correct Answer: (d)

Explanation:

The voice VLAN should be configured with the switchport voice
vlan 150 command. A switch interface can be configured to support one
data VLAN and one voice VLAN. The mls qos trust cos associates
with the interface. Voice traffic must be trusted so that fields within the
voice packet can be used to classify it for QoS.

Q(37). Which four steps are needed to
configure a voice VLAN on a switch port? (Choose four).

(a) Configure the interface as an IEEE
802.1Q trunk.

(b) Assign the voice VLAN to the switch
port. ✓

(d) Ensure that voice traffic is trusted
and tagged with a CoS priority value. ✓

(e) Add a voice VLAN. ✓

(f) Configure the switch port interface
with subinterfaces.

(g) Assign a data VLAN to the switch port.

(h) Configure the switch port in access
mode. ✓

Correct Answer: (b), (d), (e) &
(h)

Explanation:

To add an IP phone, the following commands should be added to the
switch port:
SW3(config-vlan)# vlan
150
SW3(config-vlan)# name voice
SW3(config-vlan)# int fa0/20
SW3(config-if)# switchport mode access
SW3(config-if)# mls qos trust cos
SW3(config-if)# switchport access vlan 150

Q(38). Refer to the exhibit. PC1 is unable to
communicate with server 1. The network administrator issues the show interfaces
trunk command to begin troubleshooting. What conclusion can be made based on
the output of this command?

(a) Interface G0/2 is not configured as a
trunk. ✓

(b) VLAN 20 has not been created.

(d) The DTP mode is incorrectly set to
dynamic auto on interface G0/1.

Correct Answer: (a)

Explanation:

In the show interfaces trunk output, the G0/2
interface of DLS1 is not listed. This indicates the interface has probably not
been configured as a trunk link. In the show interfaces trunk output,
the G0/2 interface of DLS1 is not listed. This indicates the interface has
probably not been configured as a trunk link.

Q(39). Refer to the exhibit. What is the
cause of the error that is displayed in the configuration of inter-VLAN routing
on router CiscoVille?

(a) The gig0/0 interface does not support inter-VLAN
routing.

(b) The no shutdown command has not been
configured.

(d) The encapsulation dot1Q 20 command has
not been configured.
✓

Correct Answer: (d)

Explanation:

No answer description available for this question

Q(40). Refer to the exhibit. A network
administrator has configured router CiscoVille with the above commands to
provide inter-VLAN routing. What command will be required on a switch that is
connected to the Gi0/0 interface on router CiscoVille to allow inter-VLAN
routing?

(a) switchport mode access

(b) no switchport

(c) switchport mode trunk ✓

(d) switchport mode dynamic desirable

Correct Answer: (c)

Explanation:

When they are configured for inter-VLAN routing, routers do not support
the dynamic trunking protocol that is used by switches. For router-on-a-stick
configurations to function, a connected switch must use the command switchport
mode trunk.

Q(41). A high school uses VLAN15 for the
laboratory network and VLAN30 for the faculty network. What is required to
enable communication between these two VLANs while using the router-on-a-stick
approach?

(a) A multilayer switch is needed.

(b) A router with at least two LAN
interfaces is needed.

(d) A switch with a port that is
configured as a trunk is needed when connecting to the router. ✓

Correct Answer: (d)

Explanation:

With router-on-a-stick, inter-VLAN routing is performed by a router
with a single router interface that is connected to a switch port configured
with trunk mode. Multiple subinterfaces, each configured for a VLAN, can be
configured under the single physical router interface. Switches can have ports
that are assigned to different VLANs, but communication between those VLANs
requires routing function from the router. A multilayer switch is not used in a
router-on-a-stick approach to inter-VLAN routing.

Q(42). When routing a large number of VLANs,
what are two disadvantages of using the router-on-a-stick inter-VLAN routing
method rather than the multilayer switch inter-VLAN routing method? (Choose
two.)

(a) Multiple SVIs are needed.

(b) A dedicated router is required. ✓

(d) Router-on-a-stick requires multiple
physical interfaces on a router.

(e) Multiple sub interfaces may impact the
traffic flow speed.
✓

Correct Answer: (b) & (e)

Explanation:

With the router-on-a-stick inter-VLAN routing method, a dedicated
router is required. It only needs one physical interface on the router to route
traffic among multiple VLANs, by using sub interfaces on one physical
interface. On the other hand, since traffic of all VLANs will have to go
through the same physical interfaces, the throughput will be impacted. Also, a
multilayer switch can use multiple SVIs to perform inter-VLAN routing.

Q(43). Refer to the exhibit. A network
administrator is verifying the configuration of inter-VLAN routing. Users
complain that PCs on different VLANs cannot communicate. Based on the output,
what are two configuration errors on switch interface Gi1/1? (Choose two.)

(a) Gi1/1 is in the default VLAN. ✓

(b) Voice VLAN is not assigned to Gi1/1.

(c) Gi1/1 is configured as trunk mode. ✓

(d) Negotiation of trunking is turned on
on Gi1/1.

(e) The trunking encapsulation protocol is
configured wrong.

Correct Answer: (a) & (c)

Explanation:

No answer description available for this question

Q(44). Refer to the exhibit. A network
administrator is verifying the configuration of inter-VLAN routing. Users
complain that PC2 cannot communicate with PC1. Based on the output, what is the
possible cause of the problem?

(a) Gi0/0 is not configured as a trunk
port.

(b) The command interface
GigabitEthernet0/0.5 was entered incorrectly.

(d) The no shutdown command is not entered
on subinterfaces.

(e) The encapsulation dot1Q 5 command
contains the wrong VLAN. ✓

Correct Answer: (e)

Explanation:

In router-on-a-stick, the subinterface configuration should match the
VLAN number in the encapsulation command, in this case, the command encapsulation
dot1Q 10 should be used for VLAN 10. Since subinterfaces are used,
there is no need to configure IP on the physical interface Gi0/0. The trunk
mode is configured on the switch port that connects to the router. The
subinterfaces are turned on when they are added.

Q(45). Refer to the exhibit. A network
administrator has configured router CiscoVille with the above commands to
provide inter-VLAN routing. What type of port will be required on a switch that
is connected to Gi0/0 on router CiscoVille to allow inter-VLAN routing?

(a) routed port

(b) access port

(c) trunk port ✓

(d) SVI

Correct Answer: (c)

Explanation:

To allow a router-on-a-stick configuration to function, a switch must
be connected to the router via a trunk port to carry the VLANs to be routed. An
SVI would be used on a multilayer switch where the switch is performing
inter-VLAN routing.

Q(46). Refer to the exhibit. A network
administrator is configuring RT1 for inter-VLAN routing. The switch is
configured correctly and is functional. Host1, Host2, and Host3 cannot
communicate with each other. Based on the router configuration, what is causing
the problem?

(a) Interface Fa0/0 is missing IP address
configuration information.

(b) IP addresses on the subinterfaces are
incorrectly matched to the VLANs. ✓

(d) Routers do not support 802.1Q
encapsulation on subinterfaces.

Correct Answer: (b)

Explanation:

No answer description available for this question

Q(47). Refer to the exhibit. A
router-on-a-stick configuration was implemented for VLANs 15, 30, and 45,
according to the show running-config command output. PCs on VLAN 45 that are
using the 172.16.45.0 /24 network are having trouble connecting to PCs on VLAN
30 in the 172.16.30.0 /24 network. Which error is most likely causing this
problem?

(a) The wrong VLAN has been configured on
GigabitEthernet 0/0.45.

(b) The command no shutdown is missing on
GigabitEthernet 0/0.30.

(d) There is an incorrect IP address
configured on GigabitEthernet 0/0.30. ✓

Correct Answer: (d)

Explanation:

The subinterface GigabitEthernet 0/0.30 has an IP address that does not
correspond to the VLAN addressing scheme. The physical interface
GigabitEthernet 0/0 does not need an IP address for the subinterfaces to
function. Subinterfaces do not require the no shutdown command.

Q(48). What is a characteristic of a routed
port on a Layer 3 switch?

(a) It supports trunking.

(b) It is not assigned to a VLAN. ✓

(d) It cannot have an IP address assigned
to it.

Correct Answer: (b)

Explanation:

A routed port on a Layer 3 switch is commonly used for connecting
between distribution and core layer switches or between a Layer 3 switch and a
router. This port does not get VLAN or trunking commands assigned to it.
Instead, the port is programmed with an IP address. This is commonly used when
static routing is configured on the switch or when a routing protocol is being
run between the Layer 3 switch and the router or another Layer 3 switch.

Q(49). Refer to the exhibit. A network
administrator needs to configure router-on-a-stick for the networks that are
shown. How many subinterfaces will have to be created on the router if each
VLAN that is shown is to be routed and each VLAN has its own subinterface?

(a) 1

(b) 2

(d) 4 ✓

(e) 5

Correct Answer: (d)

Explanation:

No answer description available for this question

Q(50). A technician is configuring a new
Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# mdix
auto command?

(a) It automatically adjusts the port to
allow device connections to use either a straight-through or a crossover cable. ✓

(b) It applies an IPv4 address to the
virtual interface.

(d) It permits an IPv6 address to be
configured on a switch physical interface.

(e) It updates the MAC address table for
the associated port.

Correct Answer: (a)

Explanation:

No answer description available for this question

Q(51). A technician is configuring a new
Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# ip
address 172.18.33.88 255.255.255.0 command?

(a) It applies an IPv4 address to the
virtual interface.
✓

(b) It applies an IPv6 address to the
virtual interface.

(d) It permits an IPv6 address to be
configured on a switch physical interface.

(e) It updates the MAC address table for
the associated port.

Correct Answer: (a)

Explanation:

No answer description available for this question

Q(52). A technician is configuring a new
Cisco 2960 switch. What is the effect of issuing the BranchSw# configure
terminal command?

(a) It enters the global configuration
mode. ✓

(b) It enters configuration mode for a
switch virtual interface.

(d) It updates the MAC address table for
the associated port.

(e) It permits an IPv6 address to be
configured on a switch physical interface.

Correct Answer: (a)

Explanation:

No answer description available for this question

Q(53). A technician is configuring a new
Cisco 2960 switch. What is the effect of issuing the BranchSw# configure
terminal command?

(a) It enters the global configuration
mode. ✓

(b) It saves the running configuration to
NVRAM.

(d) It updates the MAC address table for
the associated port.

(e) It saves the startup configuration to
the running configuration.

Correct Answer: (a)

Explanation:

No answer description available for this question

Q(54). A technician is configuring a new
Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)#
shutdown command?

(a) It disables a virtual or physical
switch interface. ✓

(b) It saves the running configuration to
NVRAM.

(d) It updates the MAC address table for
the associated port.

(e) It saves the startup configuration to
the running configuration.

Correct Answer: (a)

Explanation:

No answer description available for this question

Q(55). A technician is configuring a new
Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)#
shutdown command?

(a) It disables a virtual or physical
switch interface. ✓

(b) It applies an IPv6 address to the
virtual interface.

(d) It permits an IPv6 address to be
configured on a switch physical interface.

(e) It updates the MAC address table for
the associated port.

Correct Answer: (a)

Explanation:

No answer description available for this question

Q(56). A technician is configuring a new
Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# ipv6
address 2001:db8:a2b4:88::1/64 command?

(a) It applies an IPv6 address to the
virtual interface.
✓

(b) It activates a virtual or physical
switch interface.

(d) It permits an IPv6 address to be
configured on a switch physical interface.

(e) It updates the MAC address table for
the associated port.

Correct Answer: (a)

Explanation:

No answer description available for this question

Q(57). A technician is configuring a new
Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# exit
command?

(a) It returns to global configuration
mode. ✓

(b) It returns to privileged mode.

(d) It enters user mode.

(e) It saves the startup configuration to
the running configuration.

Correct Answer: (a)

Explanation:

No answer description available for this question

Q(58). A technician is configuring a new
Cisco 2960 switch. What is the effect of issuing the BranchSw> enable
command?

(a) It enters privileged mode. ✓

(b) It enters the global configuration
mode.

(d) It updates the MAC address table for
the associated port.

(e) It permits an IPv6 address to be
configured on a switch physical interface.

Correct Answer: (a)

Explanation:

No answer description available for this question

Q(59). A technician is configuring a new
Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# duplex
full command?

(a) It allows data to flow in both
directions at the same time on the interface. ✓

(b) It allows data to flow in only one
direction at a time on the interface

(d) It configures the switch as the
default gateway.

(e) It encrypts user-mode passwords when
users connect remotely.

Correct Answer: (a)

Explanation:

No answer description available for this question

Q(60). What type of VLAN should not carry
voice and network management traffic?

(a) data VLAN ✓

(b) trunk VLAN

(d) voice VLAN

Correct Answer: (a)

Explanation:

No answer description available for this question

Q(61). What type of VLAN is designed to
reserve bandwidth to ensure IP Phone quality?

(a) voice VLAN ✓

(b) trunk VLAN

(d) management VLAN

Correct Answer: (a)

Explanation:

No answer description available for this question

Q(62). What type of VLAN is initially the
management VLAN?

(a) default VLAN ✓

(b) native VLAN

(d) management VLAN

Correct Answer: (a)

Explanation:

No answer description available for this question

Q(63). What type of VLAN is designed to have
a delay of less than 150 ms across the network?

(a) voice VLAN ✓

(b) desirable VLAN

(d) security VLAN

Correct Answer: (a)

Explanation:

No answer description available for this question

Q(64). What type of VLAN is used to separate
the network into groups of users or devices?

(a) data VLAN ✓

(b) management VLAN

(d) native VLAN

Correct Answer: (a)

Explanation:

No answer description available for this question

Q(65). What type of VLAN is configured
specifically for network traffic such as SSH, Telnet, HTTPS, HTTP, and SNMP?

(a) management VLAN ✓

(b) security VLAN

(d) voice VLAN

Correct Answer: (a)

Explanation:

No answer description available for this question

Q(66). What type of VLAN supports untagged
traffic?

(a) native VLAN ✓

(b) desirable VLAN

(d) security VLAN

Correct Answer: (a)

Explanation:

No answer description available for this question

Q(67). Refer to the exhibit. A network administrator
has configured R1 as shown. When the administrator checks the status of the
serial interface, the interface is shown as being administratively down. What
additional command must be entered on the serial interface of R1 to bring the
interface up?

(a) IPv6 enable

(b) clockrate 128000

(d) no shutdown ✓

Correct Answer: (d)

Explanation:

By default all router interfaces are shut down. To bring the interfaces
up, an administrator must issue the no shutdown command in
interface mode.

Q(68). Refer to the exhibit. The network
administrator wants to configure Switch1 to allow SSH connections and prohibit
Telnet connections. How should the network administrator change the displayed
configuration to satisfy the requirement?

(a) Use SSH version 1.

(b) Reconfigure the RSA key.

(d) Modify the transport input command. ✓

Correct Answer: (d)

Explanation:

No answer description available for this question

Q(69). Which solution would help a college
alleviate network congestion due to collisions?

(a) a firewall that connects to two
Internet providers

(b) a high port density switch ✓

(d) a router with three Ethernet ports

Correct Answer: (b)

Explanation:

Switches provide micro segmentation so that one device does not compete
for the same Ethernet network bandwidth with another network device, thus
practically eliminating collisions. A high port density switch provides very
fast connectivity for many devices.

Q(70). Which two statements are correct with
respect to SVI inter-VLAN routing? (Choose two.)

(a) Switching packets is faster with SVI. ✓

(b) There is no need for a connection to a
router. ✓

(d) SVIs can be bundled into
EtherChannels.

(e) SVIs eliminate the need for a default
gateway in the hosts.

Correct Answer: (a) & (b)

Explanation:

The SVI inter-VLAN routing method is faster than other methods. The
switch can route the existing VLANs without the need for a router.

Q(71). Refer to the exhibit. A network administrator
is configuring inter-VLAN routing on a network. For now, only one VLAN is being
used, but more will be added soon. What is the missing parameter that is shown
as the highlighted question mark in the graphic?

(a) It identifies the subinterface.

(b) It identifies the VLAN number. ✓

(d) It identifies the type of
encapsulation that is used.

(e) It identifies the number of hosts that
are allowed on the interface.

Correct Answer: (b)

Explanation:

The completed command would be encapsulation dot1q 7.
The encapsulation dot1q part of the command enables trunking
and identifies the type of trunking to use. The 7 identifies
the VLAN number.

Q(72). Which type of VLAN is used to
designate which traffic is untagged when crossing a trunk port?

(a) data

(b) default

(c) native ✓

(d) management

Correct Answer: (c)

Explanation:

A native VLAN is the VLAN that does not receive a VLAN tag in the IEEE
802.1Q frame header. Cisco best practices recommend the use of an unused VLAN
(not a data VLAN, the default VLAN of VLAN 1, or the management VLAN) as the
native VLAN whenever possible.

Q(73). A network administrator issues the
show vlan brief command while troubleshooting a user support ticket. What
output will be displayed?

(a) the VLAN assignment and membership for
device MAC addresses

(b) the VLAN assignment and membership for
all switch ports ✓

(d) the VLAN assignment and native VLAN

Correct Answer: (b)

Explanation:

The show vlan brief command will provide information
displaying the VLAN assignment and membership for all switch ports on a switch.

Q(74).
Open the PT
Activity. Perform the tasks in the activity instructions and then answer the
question.

Which message is displayed when 10.10.10.1 is entered into the PC1 Web
Browser address bar?

(a) Local Server

(b) Test Server

(c) File Server ✓

(d) Cisco Server

Correct Answer: (c)

Explanation:

Examining the configuration of switch SW1 shows that interface Gi0/1 is
not configured as a trunk. Issuing the interface configuration command switch
port mode trunk on this interface will enable communications between
PC1 and Server1.

Q(75). Match each DHCP message type with its
description. (Not all options are used.)

Correct Answer

Explanation:

Place the options in the following order:

·
a client initiating a message to
find a DHCP server – DHCPDISCOVER

·
a DHCP server responding to the
initial request by a client – DHCPOFFER

·
the client accepting the IP
address provided by the DHCP server – DHCPREQUEST

·
the DHCP server confirming that
the lease has been accepted – DHCPACK

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Switching, Routing, and Wireless Essentials ( Version 7.00) – Switching Concepts, VLANs, and Inter-VLAN Routing Exam

1. Which tasks can be accomplished by using the command history feature? (Choose two.)

View a list of commands entered in a previous session.
Recall up to 15 command lines by default.
Set the command history buffer size.
Recall previously entered commands.
Save command lines in a log file for future reference.

2. What is the first action in the boot sequence when a switch is powered on?

load the default Cisco IOS software
load boot loader software
low-level CPU initialization
load a power-on self-test program

3. What must an administrator have in order to reset a lost password on a router?

a TFTP server
a crossover cable
access to another router
physical access to the router

4. When configuring a switch for SSH access, what other command that is associated with the login local command is required to be entered on the switch?

enable secret password
password password
username username secret secret
login block-for seconds attempts number within*seconds*

5. Which command displays information about the auto-MDIX setting for a specific interface?

show interfaces
show controllers
show processes
show running-config

Explanation: To examine the auto-MDIX setting for a specific interface, the show controllers ethernet-controller command with the phy keyword should be used.

6. If one end of an Ethernet connection is configured for full duplex and the other end of the connection is configured for half duplex, where would late collisions be observed?

on both ends of the connection
on the full-duplex end of the connection
only on serial interfaces
on the half-duplex end of the connection

7. Which command is used to set the BOOT environment variable that defines where to find the IOS image file on a switch?

config-register
boot system
boot loader
confreg

Explanation: The boot system command is used to set the BOOT environment variable. The config-register and confreg commands are used to set the configuration register. The boot loader command supports commands to format the flash file system, reinstall the operating system software, and recover from a lost or forgotten password.

8. What does a switch use to locate and load the IOS image?

BOOT environment variable
IOS image file
POST
startup-config
NVRAM

Explanation: The BOOT environment variable contains the information about where to find the IOS image file.

9. Which protocol adds security to remote connections?

FTP
HTTP
NetBEUI
POP
SSH

10. What is a characteristic of an IPv4 loopback interface on a Cisco IOS router?

The no shutdown command is required to place this interface in an UP state.
It is a logical interface internal to the router.
Only one loopback interface can be enabled on a router.
It is assigned to a physical port and can be connected to other devices.

11. What is the minimum Ethernet frame size that will not be discarded by the receiver as a runt frame?

64 bytes
512 bytes
1024 bytes
1500 bytes

Explanation: The minimum Ethernet frame size is 64 bytes. Frames smaller than 64 bytes are considered collision fragments or runt frames and are discarded.

12. After which step of the switch bootup sequence is the boot loader executed?

after CPU initialization
after IOS localization
after flash file system initialization
after POST execution

13. Which impact does adding a Layer 2 switch have on a network?

an increase in the number of dropped frames
an increase in the size of the broadcast domain
an increase in the number of network collisions
an increase in the size of the collision domain

14. Which characteristic describes cut-through switching?

Error-free fragments are forwarded, so switching occurs with lower latency.
Frames are forwarded without any error checking.
Only outgoing frames are checked for errors.
Buffering is used to support different Ethernet speeds.

15. What is the significant difference between a hub and a Layer 2 LAN switch?

A hub extends a collision domain, and a switch divides collision domains.
A hub divides collision domains, and a switch divides broadcast domains.
Each port of a hub is a collision domain, and each port of a switch is a broadcast domain.
A hub forwards frames, and a switch forwards only packets.

16. Which statement is correct about Ethernet switch frame forwarding decisions?

Frame forwarding decisions are based on MAC address and port mappings in the CAM table.
Cut-through frame forwarding ensures that invalid frames are always dropped.
Only frames with a broadcast destination address are forwarded out all active switch ports.
Unicast frames are always forwarded regardless of the destination MAC address.

17. How do switch buffers affect network performance?

They provide error checking on the data received.
They store frames received, thus preventing premature frame discarding when network congestion occurs.
They provide extra memory for a particular port if autonegotiation of speed or duplex fails.
They hold data temporarily when a collision occurs until normal data transmission resumes.

18. Which switch characteristic helps keep traffic local and alleviates network congestion?

high port density
fast port speed
large frame buffers
fast internal switching

19. Which switch component reduces the amount of packet handling time inside the switch?

ASIC
dual processors
large buffer size
store-and-forward RAM

CCNA2 v7 SRWE – Modules 1 – 4: Switching Concepts, VLANs, and InterVLAN Routing Exam Answers

CCNA 2 v7 Modules 1 – 4: Switching Concepts, VLANs, and InterVLAN Routing Exam Answers 20

21. What information is added to the switch table from incoming frames?

source MAC address and incoming port number
destination MAC address and incoming port number
source IP address and incoming port number
destination IP address and incoming port number

22. Which switching method ensures that the incoming frame is error-free before forwarding?

cut-through
FCS
fragment free
store-and-forward

23. Refer to the exhibit. How many broadcast domains are displayed?

CCNA2 v7 SRWE – Modules 1 – 4 Switching Concepts, VLANs, and InterVLAN Routing Exam Answers 23

24. Under which two occasions should an administrator disable DTP while managing a local area network? (Choose two.)

when connecting a Cisco switch to a non-Cisco switch
when a neighbor switch uses a DTP mode of dynamic auto
when a neighbor switch uses a DTP mode of dynamic desirable
on links that should not be trunking
on links that should dynamically attempt trunking

25. Which two characteristics describe the native VLAN? (Choose two.)

Designed to carry traffic that is generated by users, this type of VLAN is also known as the default VLAN.
The native VLAN traffic will be untagged across the trunk link.
This VLAN is necessary for remote management of a switch.
High priority traffic, such as voice traffic, uses the native VLAN.
The native VLAN provides a common identifier to both ends of a trunk.

26. On a switch that is configured with multiple VLANs, which command will remove only VLAN 100 from the switch?

Switch# delete flash:vlan.dat
Switch(config-if)# no switchport access vlan 100
Switch(config-if)# no switchport trunk allowed vlan 100
Switch(config)# no vlan 100

27. Refer to the exhibit. A network administrator is reviewing port and VLAN assignments on switch S2 and notices that interfaces Gi0/1 and Gi0/2 are not included in the output. Why would the interfaces be missing from the output?

CCNA 2 v7 Modules 1 – 4 Switching Concepts, VLANs, and InterVLAN Routing Exam 27

There is a native VLAN mismatch between the switches.
There is no media connected to the interfaces.
They are administratively shut down.
They are configured as trunk interfaces.

Explanation: Interfaces that are configured as trunks do not belong to a VLAN and therefore will not show in the output of the show vlan brief commands.

28. A network contains multiple VLANs spanning multiple switches. What happens when a device in VLAN 20 sends a broadcast Ethernet frame?

All devices in all VLANs see the frame.
Devices in VLAN 20 and the management VLAN see the frame.
Only devices in VLAN 20 see the frame.
Only devices that are connected to the local switch see the frame.

CCNA2 v7 SRWE – Modules 1 – 4 Switching Concepts, VLANs, and InterVLAN Routing Exam Answers 29

Allow VLAN 20 on the trunk link.
Enable DTP on both ends of the trunk.
Configure all workstations on SW1 to be part of the default VLAN.
Configure all workstations on SW2 to be part of the native VLAN.

30. What happens to switch ports after the VLAN to which they are assigned is deleted?

The ports are disabled.
The ports are placed in trunk mode.
The ports are assigned to VLAN1, the default VLAN.
The ports stop communicating with the attached devices.

Explanation: The affected ports must be reconfigured for an active VLAN.

31. Match the IEEE 802.1Q standard VLAN tag field with the description. (Not all options are used.)

CCNA2 v7 Modules 1 – 4 Switching Concepts, VLANs, and InterVLAN Routing Exam Answers 31

Explanation: The IEEE 802.1Q standard header includes a 4-byte VLAN tag:

Type – A 2-byte value called the tag protocol ID (TPID) value.
User priority – A 3-bit value that supports level or service implementation.
Canonical Format Identifier (CFI) – A 1-bit identifier that enables Token Ring frames to be carried across Ethernet links.
VLAN ID (VID) – A 12-bit VLAN identification number that supports up to 4096 VLAN IDs.

32. Refer to the exhibit. In what switch mode should port G0/1 be assigned if Cisco best practices are being used?

CCNA2 v7 Modules 1 – 4 Switching Concepts, VLANs, and InterVLAN Routing Exam Answers 32

access
trunk
native
auto

Explanation: The router is used to route between the two VLANs, thus switch port G0/1 needs to be configured in trunk mode.

33. Match the DTP mode with its function. (Not all options are used.)

CCNA2 v7 Modules 1 – 4 Switching Concepts, VLANs, and InterVLAN Routing Exam Answers 33

34. Port Fa0/11 on a switch is assigned to VLAN 30. If the command no switchport access vlan 30 is entered on the Fa0/11 interface, what will happen?

Port Fa0/11 will be shutdown.
An error message would be displayed.
Port Fa0/11 will be returned to VLAN 1.
VLAN 30 will be deleted.

35. Which command displays the encapsulation type, the voice VLAN ID, and the access mode VLAN for the Fa0/1 interface?

show vlan brief
show interfaces Fa0/1 switchport
show mac address-table interface Fa0/1
show interfaces trunk

36. Refer to the exhibit. A technician is programming switch SW3 to manage voice and data traffic through port Fa0/20. What, if anything, is wrong with the configuration?

There is nothing wrong with the configuration.
Interface Fa0/20 can only have one VLAN assigned.
The mls qos trust cos command should reference VLAN 35.
The command used to assign the voice VLAN to the switch port is incorrect.

37. Which four steps are needed to configure a voice VLAN on a switch port? (Choose four).

Configure the interface as an IEEE 802.1Q trunk.
Assign the voice VLAN to the switch port.
Activate spanning-tree PortFast on the interface.
Ensure that voice traffic is trusted and tagged with a CoS priority value.
Add a voice VLAN.
Configure the switch port interface with subinterfaces.
Assign a data VLAN to the switch port.
Configure the switch port in access mode.

CCNA2 v7 Modules 1 – 4 Switching Concepts, VLANs, and InterVLAN Routing Exam Answers 38

Interface G0/2 is not configured as a trunk.
VLAN 20 has not been created.
The encapsulation on interface G0/1 is incorrect.
The DTP mode is incorrectly set to dynamic auto on interface G0/1.

39. Refer to the exhibit. What is the cause of the error that is displayed in the configuration of inter-VLAN routing on router CiscoVille?

CCNA2 v7 Modules 1 – 4 Switching Concepts, VLANs, and InterVLAN Routing Exam Answers 39

The gig0/0 interface does not support inter-VLAN routing.
The no shutdown command has not been configured.
The IP address on CiscoVille is incorrect.
The encapsulation dot1Q 20 command has not been configured.

switchport mode access
no switchport
switchport mode trunk
switchport mode dynamic desirable

A multilayer switch is needed.
A router with at least two LAN interfaces is needed.
Two groups of switches are needed, each with ports that are configured for one VLAN.
A switch with a port that is configured as a trunk is needed when connecting to the router.

Multiple SVIs are needed.
A dedicated router is required.
Router-on-a-stick requires subinterfaces to be configured on the same subnets.
Router-on-a-stick requires multiple physical interfaces on a router.
Multiple subinterfaces may impact the traffic flow speed.

CCNA2 v7 Modules 1 – 4 Switching Concepts, VLANs, and InterVLAN Routing Exam Answers 43

Gi1/1 is in the default VLAN.
Voice VLAN is not assigned to Gi1/1.
Gi1/1 is configured as trunk mode.
Negotiation of trunking is turned on on Gi1/1.
The trunking encapsulation protocol is configured wrong.

CCNA2 v7 Modules 1 – 4 Switching Concepts, VLANs, and InterVLAN Routing Exam Answers 44

Gi0/0 is not configured as a trunk port.
The command interface GigabitEthernet0/0.5 was entered incorrectly.
There is no IP address configured on the interface Gi0/0.
The no shutdown command is not entered on subinterfaces.
The encapsulation dot1Q 5 command contains the wrong VLAN.

routed port
access port
trunk port
SVI

CCNA2 v7 Modules 1 – 4 Switching Concepts, VLANs, and InterVLAN Routing Exam Answers 46

Interface Fa0/0 is missing IP address configuration information.
IP addresses on the subinterfaces are incorrectly matched to the VLANs.
Each subinterface of Fa0/0 needs separate no shutdown commands.
Routers do not support 802.1Q encapsulation on subinterfaces.

CCNA2 v7 Modules 1 – 4 Switching Concepts, VLANs, and InterVLAN Routing Exam Answers 47

The wrong VLAN has been configured on GigabitEthernet 0/0.45.
The command no shutdown is missing on GigabitEthernet 0/0.30.
The GigabitEthernet 0/0 interface is missing an IP address.
There is an incorrect IP address configured on GigabitEthernet 0/0.30.

48. What is a characteristic of a routed port on a Layer 3 switch?

It supports trunking.
It is not assigned to a VLAN.
It is commonly used as a WAN link.
It cannot have an IP address assigned to it.

CCNA2 v7 Modules 1 – 4 Switching Concepts, VLANs, and InterVLAN Routing Exam Answers 49

50. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# mdix auto command?

It automatically adjusts the port to allow device connections to use either a straight-through or a crossover cable.
It applies an IPv4 address to the virtual interface.
It applies an IPv6 address to the virtual interface.
It permits an IPv6 address to be configured on a switch physical interface.
It updates the MAC address table for the associated port.

51. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# ip address 172.18.33.88 255.255.255.0 command?

It applies an IPv4 address to the virtual interface.
It applies an IPv6 address to the virtual interface.
It activates a virtual or physical switch interface.
It permits an IPv6 address to be configured on a switch physical interface.
It updates the MAC address table for the associated port.

52. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw# configure terminal command?

It enters the global configuration mode.
It enters configuration mode for a switch virtual interface.
It applies an IPv4 address to the virtual interface.
It updates the MAC address table for the associated port.
It permits an IPv6 address to be configured on a switch physical interface.

53. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw# configure terminal command?

It enters the global configuration mode.
It saves the running configuration to NVRAM.
It disables a virtual or physical switch interface.
It updates the MAC address table for the associated port.
It saves the startup configuration to the running configuration.

54. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# shutdown command?

It disables a virtual or physical switch interface.
It saves the running configuration to NVRAM.
It activates a virtual or physical switch interface.
It updates the MAC address table for the associated port.
It saves the startup configuration to the running configuration.

55. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# shutdown command?

It disables a virtual or physical switch interface.
It applies an IPv6 address to the virtual interface.
It applies an IPv4 address to the virtual interface.
It permits an IPv6 address to be configured on a switch physical interface.
It updates the MAC address table for the associated port.

56. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# ipv6 address 2001:db8:a2b4:88::1/64 command?

It applies an IPv6 address to the virtual interface.
It activates a virtual or physical switch interface.
It applies an IPv4 address to the virtual interface.
It permits an IPv6 address to be configured on a switch physical interface.
It updates the MAC address table for the associated port.

57. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# exit command?

It returns to global configuration mode.
It returns to privileged mode.
It configures the default gateway for the switch.
It enters user mode.
It saves the startup configuration to the running configuration.

58. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw> enable command?

It enters privileged mode.
It enters the global configuration mode.
It enters configuration mode for a switch virtual interface.
It updates the MAC address table for the associated port.
It permits an IPv6 address to be configured on a switch physical interface.

58. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# duplex full command?

It allows data to flow in both directions at the same time on the interface.
It allows data to flow in only one direction at a time on the interface
It automatically adjusts the port to allow device connections to use either a straight-through or a crossover cable.
It configures the switch as the default gateway.
It encrypts user-mode passwords when users connect remotely.

60. What type of VLAN should not carry voice and network management traffic?

data VLAN
voice VLAN
management VLAN
security VLAN

62. What type of VLAN is designed to reserve bandwidth to ensure IP Phone quality?

voice VLAN
trunk VLAN
security VLAN
management VLAN

63. What type of VLAN is initially the management VLAN?

default VLAN
native VLAN
data VLAN
management VLAN

64. What type of VLAN is designed to have a delay of less than 150 ms across the network?

voice VLAN
desirable VLAN
trunk VLAN
security VLAN

65. What type of VLAN is used to separate the network into groups of users or devices?

data VLAN
management VLAN
voice VLAN
native VLAN

66. What type of VLAN is configured specifically for network traffic such as SSH, Telnet, HTTPS, HTTP, and SNMP?

management VLAN
security VLAN
trunk VLAN
voice VLAN

68. What type of VLAN supports untagged traffic?

native VLAN
voice VLAN
security VLAN
management VLAN

69. What type of VLAN supports untagged traffic?

native VLAN
desirable VLAN
trunk VLAN
security VLAN

CCNA2 v7 Modules 1 – 4 Switching Concepts, VLANs, and InterVLAN Routing Exam Answers 70

IPv6 enable
clockrate 128000
end
no shutdown

Explanation: By default all router interfaces are shut down. To bring the interfaces up, an administrator must issue the no shutdown command in interface mode.

CCNA2 v7 Modules 1 – 4 Switching Concepts, VLANs, and InterVLAN Routing Exam Answers 71

Use SSH version 1.
Reconfigure the RSA key.
Configure SSH on a different line.
Modify the transport input command.

72. Which solution would help a college alleviate network congestion due to collisions?

a firewall that connects to two Internet providers
a high port density switch
a router with two Ethernet ports
a router with three Ethernet ports

73. Which two statements are correct with respect to SVI inter-VLAN routing? (Choose two.)

Switching packets is faster with SVI.
There is no need for a connection to a router.
Virtual interfaces support subinterfaces.
SVIs can be bundled into EtherChannels.
SVIs eliminate the need for a default gateway in the hosts.

Explanation: The SVI inter-VLAN routing method is faster than other methods. The switch can route the existing VLANs without the need for a router.

CCNA2 v7 Modules 1 – 4 Switching Concepts, VLANs, and InterVLAN Routing Exam Answers 74

It identifies the subinterface.
It identifies the VLAN number.
It identifies the native VLAN number.
It identifies the type of encapsulation that is used.
It identifies the number of hosts that are allowed on the interface.

Explanation: The completed command would be encapsulation dot1q 7. The encapsulation dot1q part of the command enables trunking and identifies the type of trunking to use. The 7 identifies the VLAN number.

75. Which type of VLAN is used to designate which traffic is untagged when crossing a trunk port?

data
default
native
management

76. A network administrator issues the show vlan brief command while troubleshooting a user support ticket. What output will be displayed?

the VLAN assignment and membership for device MAC addresses
the VLAN assignment and membership for all switch ports
the VLAN assignment and trunking encapsulation
the VLAN assignment and native VLAN

Explanation: The show vlan brief command will provide information displaying the VLAN assignment and membership for all switch ports on a switch.

77. Open the PT Activity. Perform the tasks in the activity instructions and then answer the question.

Which message is displayed when 10.10.10.1 is entered into the PC1 Web Browser address bar?

Local Server
Test Server
File Server
Cisco Server

78. Match each DHCP message type with its description. (Not all options are used.)

CCNA 2 v7 Modules 1 – 4: Switching Concepts, VLANs, and InterVLAN Routing Exam Answers

Explanation:Place the options in the following order:

a client initiating a message to find a DHCP server – DHCPDISCOVER
a DHCP server responding to the initial request by a client – DHCPOFFER
the client accepting the IP address provided by the DHCP server – DHCPREQUEST
the DHCP server confirming that the lease has been accepted – DHCPACK

Источник

When a Cisco switch receives untagged frames on a 802.1Q trunk port, which VLAN ID is the traffic switched to by default?

native VLAN ID

management VLAN ID

data VLAN ID

unused VLAN ID

What does the term “port density” represent for an Ethernet switch?

the speed of each port

the memory space that is allocated to each switch port

the number of available ports

the numbers of hosts that are connected to each switch port

A network administrator issues the show vlan brief command while troubleshooting a user support ticket. What output will be displayed?

the VLAN assignment and native VLAN

the VLAN assignment and trunking encapsulation

the VLAN assignment and membership for device MAC addresses

the VLAN assignment and membership for all switch ports

Which solution would help a college alleviate network congestion due to collisions?

a high port density switch

a router with three Ethernet ports

a firewall that connects to two Internet providers

a router with two Ethernet ports

A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# shutdown command?

It disables a virtual or physical switch interface.

It activates a virtual or physical switch interface.

It saves the startup configuration to the running configuration.

It updates the MAC address table for the associated port.

It saves the running configuration to NVRAM.

Which statement is true about broadcast and collision domains?

The size of the collision domain can be reduced by adding hubs to a network.

The more interfaces a router has the larger the resulting broadcast domain.

Adding a router to a network will increase the size of the collision domain.

Adding a switch to a network will increase the size of the broadcast domain.

Under which two occasions should an administrator disable DTP while managing a local area network? (Choose two.)

Please select 2 correct answers

when connecting a Cisco switch to a non-Cisco switch

when a neighbor switch uses a DTP mode of dynamic auto

on links that should not be trunking

when a neighbor switch uses a DTP mode of dynamic desirable

on links that should dynamically attempt trunking

Which type of address does a switch use to build the MAC address table?

destination IP address

source IP address

source MAC address

destination MAC address

Which switching method ensures that the incoming frame is error-free before forwarding?

store-and-forward

fragment free

cut-through

FCS

What type of VLAN is designed to reserve bandwidth to ensure IP Phone quality?

security VLAN

voice VLAN

management VLAN

trunk VLAN

Which type of VLAN is used to designate which traffic is untagged when crossing a trunk port?

management

data

native

default

A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# duplex full command?

It allows data to flow in both directions at the same time on the interface.

It encrypts user-mode passwords when users connect remotely.

It allows data to flow in only one direction at a time on the interface

It configures the switch as the default gateway.

It automatically adjusts the port to allow device connections to use either a straight-through or a crossover cable.

Which sentence correctly describes the SVI inter-VLAN routing method?

The encapsulation type must be configured on the SVI.

A physical interface is needed for every VLAN that is created.

An SVI is needed for each VLAN.

Subinterfaces have to be created.

Which statement describes the system LED operation on Cisco Catalyst switches?

If the LED is blinking amber, the switch is performing POST.

If the LED is blinking green, the system is operating normally.

If the LED is amber, the system is not powered on.

If the LED is amber, the system is receiving power but it is not functioning properly.

Which switch component reduces the amount of packet handling time inside the switch?

large buffer size

ASIC

dual processors

store-and-forward RAM

A high school uses VLAN15 for the laboratory network and VLAN30 for the faculty network. What is required to enable communication between these two VLANs while using the router-on-a-stick approach?

A switch with a port that is configured as a trunk is needed when connecting to the router.

A multilayer switch is needed.

Two groups of switches are needed, each with ports that are configured for one VLAN.

A router with at least two LAN interfaces is needed.

A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw# configure terminal command?

It enters the global configuration mode.

It applies an IPv4 address to the virtual interface.

It enters configuration mode for a switch virtual interface.

It updates the MAC address table for the associated port.

It permits an IPv6 address to be configured on a switch physical interface.

Which command is used to set the BOOT environment variable that defines where to find the IOS image file on a switch?

config-register

confreg

boot system

boot loader

Which tasks can be accomplished by using the command history feature? (Choose two.)

Please select 2 correct answers

Set the command history buffer size.

View a list of commands entered in a previous session.

Recall previously entered commands.

Recall up to 15 command lines by default.

Save command lines in a log file for future reference.

Which network device can be used to eliminate collisions on an Ethernet network?

firewall

router

hub

switch

Port Fa0/11 on a switch is assigned to VLAN 30. If the command no switchport access vlan 30 is entered on the Fa0/11 interface, what will happen?

An error message would be displayed.

VLAN 30 will be deleted.

Port Fa0/11 will be returned to VLAN 1.

Port Fa0/11 will be shutdown.

Which command displays information about the auto-MDIX setting for a specific interface?

show controllers

show running-config

show processes

show interfaces

Which four steps are needed to configure a voice VLAN on a switch port? (Choose four).

Please select 4 correct answers

Configure the switch port in access mode.

Assign the voice VLAN to the switch port.

Configure the interface as an IEEE 802.1Q trunk.

Add a voice VLAN.

Ensure that voice traffic is trusted and tagged with a CoS priority value.

Assign a data VLAN to the switch port.

Configure the switch port interface with subinterfaces.

Activate spanning-tree PortFast on the interface.

What type of Ethernet cable would be used to connect one switch to another switch when neither switch supports the auto-MDIX feature?

crossover

coaxial

rollover

straight-through

When routing a large number of VLANs, what are two disadvantages of using the router-on-a-stick inter-VLAN routing method rather than the multilayer switch inter-VLAN routing method? (Choose two.)

Please select 2 correct answers

Multiple SVIs are needed.

Router-on-a-stick requires multiple physical interfaces on a router.

Router-on-a-stick requires subinterfaces to be configured on the same subnets.

Multiple subinterfaces may impact the traffic flow speed.

A dedicated router is required.

In which memory location are the VLAN configurations of normal range VLANs stored on a Catalyst switch?

What will a Cisco LAN switch do if it receives an incoming frame and the destination MAC address is not listed in the MAC address table?

Send the frame to the default gateway address.

Forward the frame out all ports except the port where the frame is received.

Use ARP to resolve the port that is related to the frame.

Drop the frame.

In which location are the normal range VLANs stored on a Cisco switch by default?

running-config

flash memory

RAM

startup-config

What is a disadvantage of using multilayer switches for inter-VLAN routing?

Multilayer switches have higher latency for Layer 3 routing.

Multilayer switches are more expensive than router-on-a-stick implementations.

Multilayer switches are limited to using trunk links for Layer 3 routing.

Spanning tree must be disabled in order to implement routing on a multilayer switch.

Which two statements are true about half-duplex and full-duplex communications? (Choose two.)

Please select 2 correct answers

Full duplex allows both ends to transmit and receive simultaneously.

Full duplex increases the effective bandwidth.

Half duplex has only one channel.

Full duplex offers 100 percent potential use of the bandwidth.

All modern NICs support both half-duplex and full-duplex communication.

Which distinct type of VLAN is used by an administrator to access and configure a switch?

native VLAN

management VLAN

default VLAN

data VLAN

A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# mdix auto command?

It applies an IPv6 address to the virtual interface.

It updates the MAC address table for the associated port.

It automatically adjusts the port to allow device connections to use either a straight-through or a crossover cable.

It applies an IPv4 address to the virtual interface.

It permits an IPv6 address to be configured on a switch physical interface.

A network contains multiple VLANs spanning multiple switches. What happens when a device in VLAN 20 sends a broadcast Ethernet frame?

All devices in all VLANs see the frame.

Only devices that are connected to the local switch see the frame.

Only devices in VLAN 20 see the frame.

Devices in VLAN 20 and the management VLAN see the frame.

A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# exit command?

It returns to global configuration mode.

It returns to privileged mode.

It configures the default gateway for the switch.

It saves the startup configuration to the running configuration.

It enters user mode.

What happens to a port that is associated with VLAN 10 when the administrator deletes VLAN 10 from the switch?

The port creates the VLAN again.

The port becomes inactive.

The port goes back to the default VLAN.

The port automatically associates itself with the native VLAN.

After which step of the switch bootup sequence is the boot loader executed?

after POST execution

after IOS localization

after CPU initialization

after flash file system initialization

Which prompt is displayed when a network administrator successfully accesses the boot loader on a switch to recover from a system crash?

system#

system:

switch:

switch#

What type of VLAN supports untagged traffic?

voice VLAN

management VLAN

security VLAN

native VLAN

What type of VLAN should not carry voice and network management traffic?

voice VLAN

security VLAN

management VLAN

data VLAN

Which switch characteristic helps alleviate network congestion when a 10 Gbps port is forwarding data to a 1 Gbps port?

high port density

fast port speed

fast internal switching

frame buffering

Which command displays the encapsulation type, the voice VLAN ID, and the access mode VLAN for the Fa0/1 interface?

show vlan brief

show mac address-table interface Fa0/1

show interfaces trunk

show interfaces Fa0/1 switchport

What advantage does SSH offer over Telnet?

connection-oriented services

encryption

username and password authentication

more connection lines

Which impact does adding a Layer 2 switch have on a network?

an increase in the number of network collisions

an increase in the size of the broadcast domain

an increase in the number of dropped frames

an increase in the size of the collision domain

What is the significant difference between a hub and a Layer 2 LAN switch?

A hub forwards frames, and a switch forwards only packets.

A hub divides collision domains, and a switch divides broadcast domains.

Each port of a hub is a collision domain, and each port of a switch is a broadcast domain.

A switch creates many smaller collision domains, and a hub increases the size of a single collision domain.

Which command will provide information about the status of all interfaces including the number of giants, runts, and collisions on the interface?

show ip interface brief

show history

show interfaces

show running-config

Which two characteristics describe the native VLAN? (Choose two.)

Please select 2 correct answers

The native VLAN traffic will be untagged across the trunk link.

Designed to carry traffic that is generated by users, this type of VLAN is also known as the default VLAN.

This VLAN is necessary for remote management of a switch.

The native VLAN provides a common identifier to both ends of a trunk.

High priority traffic, such as voice traffic, uses the native VLAN.

While configuring inter-VLAN routing on a multilayer switch, a network administrator issues the no switchport command on an interface that is connected to another switch. What is the purpose of this command?

to provide an access link that tags VLAN traffic

to create a routed port for a single network

to create a switched virtual interface

to provide a static trunk link

Which router bootup sequence is correct?

1 — perform the POST and load the bootstrap program</
2 — locate and load the Cisco IOS software</
3 — locate and load the startup configuration file or enter setup mode

1 — perform the POST and load the Cisco IOS software</
2 — locate and load the startup configuration file or enter setup mode</
3 — locate and load the bootstrap program

1 — perform the POST and load the bootstrap program</
2 — locate and load the startup configuration file or enter setup mode</
3 — locate and load the Cisco IOS software

1 — perform the POST and load the startup configuration file</
2 — locate and load the bootstrap program</
3 — locate and load the Cisco IOS software

A network administrator is determining the best placement of VLAN trunk links. Which two types of point-to-point connections utilize VLAN trunking? (Choose two.)

Please select 2 correct answers

between a switch and a server that has an 802.1Q NIC

between a switch and a network printer

between two switches that share a common VLAN

between two switches that utilize multiple VLANs

between a switch and a client PC

On a Cisco switch, where is extended range VLAN information stored?

flash

running configuration file

NVRAM

startup configuration file

Which characteristic describes cut-through switching?

Error-free fragments are forwarded, so switching occurs with lower latency.

Buffering is used to support different Ethernet speeds.

Only outgoing frames are checked for errors.

Frames are forwarded without any error checking.

What is the purpose of the vlan.dat file on a switch?

It holds the VLAN database.

It holds the operating system.

It holds the running configuration.

It holds the saved configuration.

Which protocol adds security to remote connections?

How do switch buffers affect network performance?

They store frames received, thus preventing premature frame discarding when network congestion occurs.

They provide extra memory for a particular port if autonegotiation of speed or duplex fails.

They provide error checking on the data received.

They hold data temporarily when a collision occurs until normal data transmission resumes.

Where is the vlan.dat file stored on a switch?

on the externally attached storage media or internal hard drive

in RAM

in flash memory

in NVRAM

What is a disadvantage of using router-on-a-stick inter-VLAN routing?

requires the use of multiple router interfaces configured to operate as access links

does not scale well beyond 50 VLANs

does not support VLAN-tagged packets

What is required to perform router-on-a-stick inter-VLAN routing?

a router with multiple physical interfaces

a router that is configured with multiple subinterfaces

a multilayer switch

a Layer 2 switch that is configured with multiple trunk ports

A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# ip address 172.18.33.88 255.255.255.0 command?

It applies an IPv4 address to the virtual interface.

It updates the MAC address table for the associated port.

It permits an IPv6 address to be configured on a switch physical interface.

It activates a virtual or physical switch interface.

It applies an IPv6 address to the virtual interface.

Which option correctly describes a switching method?

cut-through: makes a forwarding decision after receiving the entire frame

store-and-forward: ensures that the frame is free of physical and data-link errors

store-and-forward: forwards the frame immediately after examining its destination MAC address

cut-through: provides the flexibility to support any mix of Ethernet speeds

What is the purpose of setting the native VLAN separate from data VLANs?

The native VLAN is for carrying VLAN management traffic only.

The native VLAN is for routers and switches to exchange their management information, so it should be different from data VLANs.

The security of management frames that are carried in the native VLAN can be enhanced.

A separate VLAN should be used to carry uncommon untagged frames to avoid bandwidth contention on data VLANs.

A network administrator enters the following command sequence on a Cisco 3560 switch. What is the purpose of these commands?

to enable the Gi0/1 port as a bridge virtual interface

to make the Gi0/1 port a routed port

to shut down the Gi0/1 port

to enable the Gi0/1 port as a switch virtual interface

Switch(config)# interface gigabitethernet 0/1
Switch(config-if)# no switchport

What are three primary benefits of using VLANs? (Choose three.)

Please select 3 correct answers

improved IT staff efficiency

end user satisfaction

cost reduction

a reduction in the number of trunk links

no required configuration

security

When configuring a router as part of a router-on-a-stick inter-VLAN routing topology, where should the IP address be assigned?

to the interface

to the VLAN

to the subinterface

to the SVI

A Cisco switch currently allows traffic tagged with VLANs 10 and 20 across trunk port Fa0/5. What is the effect of issuing a switchport trunk allowed vlan 30 command on Fa0/5?

It allows only VLAN 30 on Fa0/5.

It allows VLANs 10, 20, and 30 on Fa0/5.

It allows a native VLAN of 30 to be implemented on Fa0/5.

It allows VLANs 1 to 30 on Fa0/5.

What is one function of a Layer 2 switch?

duplicates the electrical signal of each frame to every port

forwards data based on logical addressing

learns the port assigned to a host by examining the destination MAC address

determines which interface is used to forward a frame based on the destination MAC address

What happens to switch ports after the VLAN to which they are assigned is deleted?

The ports stop communicating with the attached devices.

The ports are placed in trunk mode.

The ports are assigned to VLAN1, the default VLAN.

The ports are disabled.

An administrator is investigating a failure on a trunk link between a Cisco switch and a switch from another vendor. After a few show commands, the administrator notices that the the switches are not negotiating a trunk. What is a probable cause for this issue?

Switches from other vendors do not support DTP.

DTP frames are flooding the entire network.

Both switches are in trunk mode.

Both switches are in nonegotiate mode.

A small college uses VLAN 10 for the classroom network and VLAN 20 for the office network. What is needed to enable communication between these two VLANs while using legacy inter-VLAN routing?

Two groups of switches are needed, each with ports that are configured for one VLAN.

A router with one VLAN interface is needed to connect to the SVI on a switch.

A switch with a port that is configured as trunk is needed to connect to a router.

A router with at least two LAN interfaces should be used.

A PC is to access a web server on another network. Which inter-VLAN method will provide the highest bandwidth at Layer 3 and also provide a default gateway for the PC?

router on a stick

multiple physical interfaces on the router, all connected to a Layer 2 switch

trunked interface between the router and the switch

multilayer switch with routing enabled

Which statement describes SVIs?

An SVI is created automatically for each VLAN on a multilayer switch.

Creating an SVI automatically creates an associated VLAN.

A default SVI is created for VLAN 1 for switch administration.

An SVI can only be created for the management VLAN.

A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# ipv6 address 2001:db8:a2b4:88::1/64 command?

It applies an IPv6 address to the virtual interface.

It permits an IPv6 address to be configured on a switch physical interface.

It activates a virtual or physical switch interface.

It updates the MAC address table for the associated port.

It applies an IPv4 address to the virtual interface.

Which information does a switch use to keep the MAC address table information current?

the source MAC address and the incoming port

the source and destination MAC addresses and the outgoing port

the source MAC address and the outgoing port

the destination MAC address and the incoming port

the destination MAC address and the outgoing port

the source and destination MAC addresses and the incoming port

Which type of inter-VLAN communication design requires the configuration of multiple subinterfaces?

routing via a multilayer switch

legacy inter-VLAN routing

routing for the management VLAN

router on a stick

An administrator was troubleshooting a router-on-a-stick topology and concluded that the problem was related to the configuration of VLANs on the router subinterfaces. Which two commands can the administrator use in the router to identify the problem? (Choose two.)

show ip interface

show controllers

show running-config

show vlan

show ip protocols

What type of VLAN is initially the management VLAN?

native VLAN

management VLAN

data VLAN

default VLAN

If one end of an Ethernet connection is configured for full duplex and the other end of the connection is configured for half duplex, where would late collisions be observed?

on both ends of the connection

on the half-duplex end of the connection

only on serial interfaces

on the full-duplex end of the connection

How is traffic routed between multiple VLANs on a multilayer switch?

Traffic is routed via internal VLAN interfaces.

Traffic is routed via physical interfaces.

Traffic is routed via subinterfaces.

Traffic is broadcast out all physical interfaces.

What is the purpose of frame buffers on a switch?

They provide a basic security scan on received frames.

They execute checksum values before transmission.

They hold traffic, thus alleviating network congestion.

They provide temporary storage of the frame checksum.

What is the minimum Ethernet frame size that will not be discarded by the receiver as a runt frame?

1500 bytes

64 bytes

1024 bytes

512 bytes

What is the meaning of the number 10 in the encapsulation dot1Q 10 native router subinterface command?

the subnet number

the subinterface number

the interface number

the VLAN ID

Which statement is correct about Ethernet switch frame forwarding decisions?

Cut-through frame forwarding ensures that invalid frames are always dropped.

Unicast frames are always forwarded regardless of the destination MAC address.

Frame forwarding decisions are based on MAC address and port mappings in the CAM table.

Only frames with a broadcast destination address are forwarded out all active switch ports.

What is the first action in the boot sequence when a switch is powered on?

load boot loader software

load a power-on self-test program

low-level CPU initialization

load the default Cisco IOS software

Which switch characteristic helps keep traffic local and alleviates network congestion?

large frame buffers

high port density

fast internal switching

fast port speed

Which network device can serve as a boundary to divide a Layer 2 broadcast domain?

Ethernet hub

Ethernet bridge

access point

router

What is a characteristic of an IPv4 loopback interface on a Cisco IOS router?

Only one loopback interface can be enabled on a router.

It is a logical interface internal to the router.

It is assigned to a physical port and can be connected to other devices.

The no shutdown command is required to place this interface in an UP state.

Which scalable method must be implemented in order to provide inter-VLAN routing on a switched network with more than 1000 VLANs?

connecting each physical router interface to a different physical switch port, with each switch port assigned to a different VLAN

configuring static routes on a Layer 2 switch device

routing traffic internally to a Layer 3 switch device

connecting a router interface to a switch port that is configured in trunk mode to route packets between VLANs, with each VLAN assigned to a router subinterface

What type of VLAN is used to separate the network into groups of users or devices?

voice VLAN

native VLAN

management VLAN

data VLAN

What type of VLAN is designed to have a delay of less than 150 ms across the network?

trunk VLAN

security VLAN

desirable VLAN

voice VLAN

An administrator issues the command confreg 0x2142 at the rommon 1> prompt. What is the effect when this router is rebooted?

Contents in RAM will be ignored.

Contents in NVRAM will be erased.

Contents in RAM will be erased.

Contents in NVRAM will be ignored.

Which switching method makes use of the FCS value?

store-and-forward

broadcast

cut-through

large frame buffer

When configuring a switch for SSH access, what other command that is associated with the login local command is required to be entered on the switch?

password password

enable secret password

username username secret secret

Which two statements are correct with respect to SVI inter-VLAN routing? (Choose two.)

Please select 2 correct answers

Virtual interfaces support subinterfaces.

SVIs can be bundled into EtherChannels.

SVIs eliminate the need for a default gateway in the hosts.

Switching packets is faster with SVI.

There is no need for a connection to a router.

What must an administrator have in order to reset a lost password on a router?

access to another router

a crossover cable

physical access to the router

a TFTP server

On a switch that is configured with multiple VLANs, which command will remove only VLAN 100 from the switch?

Switch(config)# no vlan 100

Switch# delete flash:vlan.dat

Switch(config-if)# no switchport trunk allowed vlan 100

Switch(config-if)# no switchport access vlan 100

What is the significant difference between a hub and a Layer 2 LAN switch?

Each port of a hub is a collision domain, and each port of a switch is a broadcast domain.

A hub forwards frames, and a switch forwards only packets.

A hub divides collision domains, and a switch divides broadcast domains.

A hub extends a collision domain, and a switch divides collision domains.

What information is added to the switch table from incoming frames?

destination MAC address and incoming port number

source IP address and incoming port number

destination IP address and incoming port number

source MAC address and incoming port number

A network administrator has configured VLAN 99 as the management VLAN and has configured it with an IP address and subnet mask. The administrator issues the show interface vlan 99 command and notices that the line protocol is down. Which action can change the state of the line protocol to up?

Configure a default gateway.

Configure a transport input method on the vty lines.

Connect a host to an interface associated with VLAN 99.

Remove all access ports from VLAN 99.

A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw> enable command?

It permits an IPv6 address to be configured on a switch physical interface.

It enters the global configuration mode.

It updates the MAC address table for the associated port.

It enters privileged mode.

It enters configuration mode for a switch virtual interface.

What operational mode should be used on a switch port to connect it to a router for router-on-a-stick inter-VLAN routing?

dynamic desirable

dynamic auto

trunk

access

What does a switch use to locate and load the IOS image?

BOOT environment variable

NVRAM

POST

IOS image file

startup-config

If an organization is changing to include Cisco IP phones in its network, what design feature must be considered to ensure voice quality?

Voice traffic and data traffic require separate trunk links between switches.

Additional switch ports that are dedicated to Cisco IP phones are required.

A separate VLAN is needed for voice traffic.

Voice traffic needs to be tagged with the native VLAN.

What type of VLAN is configured specifically for network traffic such as SSH, Telnet, HTTPS, HHTP, and SNMP?

voice VLAN

security VLAN

trunk VLAN

management VLAN

What is a characteristic of a routed port on a Layer 3 switch?

It is commonly used as a WAN link.

It is not assigned to a VLAN.

It supports trunking.

It cannot have an IP address assigned to it.

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Which switch component reduces the amount of packet handling time inside the switch?

ASIC
store-and-forward RAM
large buffer size
dual processors

store-and-forward
cut-through
FCS
fragment free

Cut-through frame forwarding ensures that invalid frames are always dropped.
Unicast frames are always forwarded regardless of the destination MAC address.
Only frames with a broadcast destination address are forwarded out all active switch ports.
Frame forwarding decisions are based on MAC address and port mappings in the CAM table.
4.
Refer to the exhibit. A switch receives a Layer 2 frame that contains a source MAC address of 000b.a023.c501 and a destination MAC address of 0050.0fae.75aa. Place the switch steps in the order they occur. (Not all options are used.)
- an increase in the size of the broadcast domain
- an increase in the number of dropped frames
- an increase in the number of network collisions
- an increase in the size of the collision domain

destination MAC address and incoming port number
source MAC address and incoming port number
source IP address and incoming port number
destination IP address and incoming port number

large frame buffers
high port density
fast internal switching
fast port speed

show mac address-table interface Fa0/1
show interfaces trunk
show interfaces Fa0/1 switchport
show vlan brief
The encapsulation on interface G0/1 is incorrect.

VLAN 20 has not been created.

Interface G0/2 is not configured as a trunk.

The DTP mode is incorrectly set to dynamic auto on interface G0/1.

trunk
auto
access
native

Ensure that voice traffic is trusted and tagged with a CoS priority value.
Configure the switch port in access mode.
Configure the switch port interface with subinterfaces.
Configure the interface as an IEEE 802.1Q trunk.
Activate spanning-tree PortFast on the interface.
Assign a data VLAN to the switch port.
Assign the voice VLAN to the switch port.
Add a voice VLAN.

There is no media connected to the interfaces.
They are administratively shut down.
They are configured as trunk interfaces.
There is a native VLAN mismatch between the switches.

Port Fa0/11 will be returned to VLAN 1.
Port Fa0/11 will be shutdown.
VLAN 30 will be deleted.
An error message would be displayed.
- when connecting a Cisco switch to a non-Cisco switch
- when a neighbor switch uses a DTP mode of dynamic auto
- on links that should not be trunking
- when a neighbor switch uses a DTP mode of dynamic desirable
- on links that should dynamically attempt trunking

Enable DTP on both ends of the trunk.
Configure all workstations on SW1 to be part of the default VLAN.
Configure all workstations on SW2 to be part of the native VLAN.
Allow VLAN 20 on the trunk link

POST
IOS image file
NVRAM
startup-config
BOOT environment variable

boot system
confreg
config-register
boot loader

show running-config
show controllers
show processes
show interfaces
- It updates the MAC address table for the associated port.
- It enters configuration mode for a switch virtual interface.
- It permits an IPv6 address to be configured on a switch physical interface.
- It applies an IPv4 address to the virtual interface.
- It enters the global configuration mode.
- - trunk VLAN
  - voice VLAN
  - desirable VLAN
  - security VLAN

data
native
management
default

File Server
Test Server
Local Server
Cisco Server

end
no shutdown
clockrate 128000
IPv6 enable

Switching packets is faster with SVI.
There is no need for a connection to a router.
SVIs eliminate the need for a default gateway in the hosts.
SVIs can be bundled into EtherChannels.
Virtual interfaces support subinterfaces.

Configure SSH on a different line.
Reconfigure the RSA key.
Modify the transport input command.
Use SSH version 1.

a firewall that connects to two Internet providers
a high port density switch
a router with three Ethernet ports
a router with two Ethernet ports

It identifies the native VLAN number.
It identifies the type of encapsulation that is used.
It identifies the subinterface.
It identifies the VLAN number.
It identifies the number of hosts that are allowed on the interface.

the VLAN assignment and native VLAN
the VLAN assignment and trunking encapsulation
the VLAN assignment and membership for all switch ports
the VLAN assignment and membership for device MAC addresses

The IP address on CiscoVille is incorrect.
The gig0/0 interface does not support inter-VLAN routing.
The encapsulation dot1Q 20 command has not been configured.
The no shutdown command has not been configured.
- Gi1/1 is configured as trunk mode.
- The trunking encapsulation protocol is configured wrong.
- Gi1/1 is in the default VLAN.
- Voice VLAN is not assigned to Gi1/1.
- Negotiation of trunking is turned on on Gi1/1.

A switch with a port that is configured as a trunk is needed when connecting to the router.
A multilayer switch is needed.
A router with at least two LAN interfaces is needed.
Two groups of switches are needed, each with ports that are configured for one VLAN.

routed port
SVI
trunk port
access port
- 1
- 3
- 2
- 5
- 4

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Switching Concepts, VLANs, and InterVLAN Routing

Terms in this set (73)

-Set the command history buffer size.
-Recall previously entered commands.

Which tasks can be accomplished by using the command history feature? (Two answers)

Load a power-on self-test program.

What is the first action in the boot sequence when a switch is powered on?

Physical access to the router.

What must an administrator have in order to reset a lost password on a router?

username username secret secret

When configuring a switch for SSH access, what other command that is associated with the login local command is required to be entered on the switch?

show controllers

Which command displays information about the auto-MDIX setting for a specific interface?

On the half-duplex end of the connection.

If one end of an Ethernet connection is configured for full duplex and the other end of the connection is configured for half duplex, where would late collisions be observed?

boot system

Which command is used to set the BOOT environment variable that defines where to find the IOS image file on a switch?

BOOT environment variable

What does a switch use to locate and load the IOS image?

SSH

Which protocol adds security to remote connections?

It is a logical interface internal to the router.

What is a characteristic of an IPv4 loopback interface on a Cisco IOS router?

64 bytes

What is the minimum Ethernet frame size that will not be discarded by the receiver as a runt frame?

After POST execution

After which step of the switch bootup sequence is the boot loader executed?

An increase in the size of the broadcast domain.

Which impact does adding a Layer 2 switch have on a network?

Frames are forwarded without any error checking.

Which characteristic describes cut-through switching?

A hub extends a collision domain, and a switch divides collision domains.

What is the significant difference between a hub and a Layer 2 LAN switch?

They store frames received, thus preventing premature frame discarding when network congestion occurs.

How do switch buffers affect network performance?

True

In an Ethernet switch, Frame forwarding decisions are based on MAC address and port mappings in the CAM table. True or false?

High port density

Which switch characteristic helps keep traffic local and alleviates network congestion?

ASIC (Application-Specific Integrated Circuits)

Which switch component reduces the amount of packet handling time inside the switch?

…

Refer to the exhibit. A switch receives a Layer 2 frame that contains a source MAC address of 000b.a023.c501 and a destination MAC address of 0050.0fae.75aa. Place the switch steps in the order they occur. (Not all options are used.)

Source MAC address and incoming port number

What information is added to the switch table from incoming frames?

Store-and-forward

Which switching method ensures that the incoming frame is error-free before forwarding?

Refer to the exhibit. How many broadcast domains are displayed?

-The native VLAN traffic will be untagged across the trunk link.
-The native VLAN provides a common identifier to both ends of a trunk.

Which two characteristics describe the native VLAN? (Two answers)

-When connecting a Cisco switch to a non-Cisco switch
-On links that should not be trunking

Under which two occasions should an administrator disable DTP while managing a local area network? (Two answers)

Switch(config)# no vlan 100

On a switch that is configured with multiple VLANs, which command will remove only VLAN 100 from the switch?

They are configured as trunk interfaces.

Refer to the exhibit. A network administrator is reviewing port and VLAN assignments on switch S2 and notices that interfaces Gi0/1 and Gi0/2 are not included in the output. Why would the interfaces be missing from the output?

Only devices in VLAN 20 see the frame.

A network contains multiple VLANs spanning multiple switches. What happens when a device in VLAN 20 sends a broadcast Ethernet frame?

Allow VLAN 20 on the trunk link.

Refer to the exhibit. All workstations are configured correctly in VLAN 20. Workstations that are connected to switch SW1 are not able to send traffic to workstations on SW2. What could be done to remedy the problem?

The ports stop communicating with the attached devices.

What happens to switch ports after the VLAN to which they are assigned is deleted?

…

Match the IEEE 802.1Q standard VLAN tag field with the description. (Not all options are used.)

Trunk

Refer to the exhibit. In what switch mode should port G0/1 be assigned if Cisco best practices are being used?

-Dynamic Desirable > Actively attempts to convert the link to a trunk.
-Dynamic Auto > Passively waits for the neighbor to initiate trunking.
-Nonegotiate > Requires manual configuration of trunking or nontrunking.
-Trunk > Permanent trunking mode.

Match the DTP mode with its function. (Not all options are used.)

Port Fa0/11 will be returned to VLAN 1.

Port Fa0/11 on a switch is assigned to VLAN 30. If the command no switchport access vlan 30 is entered on the Fa0/11 interface, what will happen?

show interfaces Fa0/1 switchport

Which command displays the encapsulation type, the voice VLAN ID, and the access mode VLAN for the Fa0/1 interface?

The command used to assign the voice VLAN to the switch port is incorrect.

Refer to the exhibit. A technician is programming switch SW3 to manage voice and data traffic through port Fa0/20. What, if anything, is wrong with the configuration?

-Assign the voice VLAN to the switch port.
-Ensure that voice traffic is trusted and tagged with a CoS priority value.
-Add a voice VLAN.
-Configure the switch port in access mode.

Which four steps are needed to configure a voice VLAN on a switch port? (Four answers).

Interface G0/2 is not configured as a trunk.

Refer to the exhibit. PC1 is unable to communicate with server 1. The network administrator issues the show interfaces trunk command to begin troubleshooting. What conclusion can be made based on the output of this command?

The encapsulation dot1Q 20 command has not been configured.

Refer to the exhibit. What is the cause of the error that is displayed in the configuration of inter-VLAN routing on router CiscoVille?

switchport mode trunk

Refer to the exhibit. A network administrator has configured router CiscoVille with the above commands to provide inter-VLAN routing. What command will be required on a switch that is connected to the Gi0/0 interface on router CiscoVille to allow inter-VLAN routing?

A switch with a port that is configured as a trunk is needed when connecting to the router.

A high school uses VLAN15 for the laboratory network and VLAN30 for the faculty network. What is required to enable communication between these two VLANs while using the router-on-a-stick approach?

-A dedicated router is required.
-Multiple subinterfaces may impact the traffic flow speed.

When routing a large number of VLANs, what are two disadvantages of using the router-on-a-stick inter-VLAN routing method rather than the multilayer switch inter-VLAN routing method? (Two answers)

-Gi1/1 is in the default VLAN.
-Gi1/1 is configured as trunk mode.

Refer to the exhibit. A network administrator is verifying the configuration of inter-VLAN routing. Users complain that PCs on different VLANs cannot communicate. Based on the output, what are two configuration errors on switch interface Gi1/1? (Two answers)

The encapsulation dot1Q 5 command contains the wrong VLAN.

Refer to the exhibit. A network administrator is verifying the configuration of inter-VLAN routing. Users complain that PC2 cannot communicate with PC1. Based on the output, what is the possible cause of the problem?

Trunk port

Refer to the exhibit. A network administrator has configured router CiscoVille with the above commands to provide inter-VLAN routing. What type of port will be required on a switch that is connected to Gi0/0 on router CiscoVille to allow inter-VLAN routing?

IP addresses on the subinterfaces are incorrectly matched to the VLANs.

Refer to the exhibit. A network administrator is configuring RT1 for inter-VLAN routing. The switch is configured correctly and is functional. Host1, Host2, and Host3 cannot communicate with each other. Based on the router configuration, what is causing the problem?

There is an incorrect IP address configured on GigabitEthernet 0/0.30.

Refer to the exhibit. A router-on-a-stick configuration was implemented for VLANs 15, 30, and 45, according to the show running-config command output. PCs on VLAN 45 that are using the 172.16.45.0 /24 network are having trouble connecting to PCs on VLAN 30 in the 172.16.30.0 /24 network. Which error is most likely causing this problem?

It is not assigned to a VLAN.

What is a characteristic of a routed port on a Layer 3 switch?

Refer to the exhibit. A network administrator needs to configure router-on-a-stick for the networks that are shown. How many subinterfaces will have to be created on the router if each VLAN that is shown is to be routed and each VLAN has its own subinterface?

It applies an IPv4 address to the virtual interface.

A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# ip address 172.18.33.88 255.255.255.0 command?

It automatically adjusts the port to allow device connections to use either a straight-through or a crossover cable.

A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# mdix auto command?

It enters the global configuration mode.

A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw# configure terminal command?

It disables a virtual or physical switch interface.

A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# shutdown command?

It applies an IPv6 address to the virtual interface.

A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# ipv6 address 2001:db8:a2b4:88::1/64 command?

It returns to global configuration mode.

A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# exit command?

It enters privileged mode.

A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw> enable command?

It allows data to flow in both directions at the same time on the interface.

A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# duplex full command?

Data VLAN

What type of VLAN should not carry voice and network management traffic?

Voice VLAN

What type of VLAN is designed to reserve bandwidth to ensure IP Phone quality?

Default VLAN

What type of VLAN is initially the management VLAN?

Voice VLAN

What type of VLAN is designed to have a delay of less than 150 ms across the network?

Data VLAN

What type of VLAN is used to separate the network into groups of users or devices?

Management VLAN

What type of VLAN is configured specifically for network traffic such as SSH, Telnet, HTTPS, HHTP, and SNMP?

Native VLAN

What type of VLAN supports untagged traffic?

no shutdown

Refer to the exhibit. A network administrator has configured R1 as shown. When the administrator checks the status of the serial interface, the interface is shown as being administratively down. What additional command must be entered on the serial interface of R1 to bring the interface up?

Modify the transport input command.

Refer to the exhibit. The network administrator wants to configure Switch1 to allow SSH connections and prohibit Telnet connections. How should the network administrator change the displayed configuration to satisfy the requirement?

A high port density switch

Which solution would help a college alleviate network congestion due to collisions?

-Switching packets is faster with SVI.
-There is no need for a connection to a router.

Which two statements are correct with respect to SVI inter-VLAN routing? (Two answers)

It identifies the VLAN number.

Refer to the exhibit. A network administrator is configuring inter-VLAN routing on a network. For now, only one VLAN is being used, but more will be added soon. What is the missing parameter that is shown as the highlighted question markRefer to the exhibit. A network administrator is configuring inter-VLAN routing on a network. For now, only one VLAN is being used, but more will be added soon. What is the missing parameter that is shown as the highlighted question mark in the graphic? in the graphic?

Native

Which type of VLAN is used to designate which traffic is untagged when crossing a trunk port?

The VLAN assignment and membership for all switch ports

A network administrator issues the show vlan brief command while troubleshooting a user support ticket. What output will be displayed?

File Server

Open the PT Activity. Perform the tasks in the activity instructions and then answer the question. Which message is displayed when 10.10.10.1 is entered into the PC1 Web Browser address bar?

…

Match each DHCP message type with its description. (Not all options are used.)

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Verified questions

other

In the following questions four items are given. Find the odd one out.
(A) Moscow
(B) Paris
(C) Athens
(D) Egypt

Verified answer

other

A standard drink is generally:
A. 12-ounce beer
B. 5-ounce glass of wine
C. 1.5 ounces of liquor
D. All of the above

Verified answer

other

The temperature at which a flammable liquid’s vapors will ignite when brought into contact with an open flame is called the ___ point.

Verified answer

other

Someone who has consumed a lot of alcohol:
A. Is not capable of giving true consent
B. Is never to blame for being sexually assaulted
C. May need help getting out of a potentially dangerous situation
D. All of the above

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Источник

Switching, Routing, and Wireless Essentials ( Version 7.00) – Switching Concepts,

VLANs, and Inter—VLAN Routing Exam

1. Which tasks can be accomplished by using the command history

feature? (Choose two.)

View a list of commands entered in a previous session.

Recall up to 15 command lines by default.

Set the command history buffer size.

Recall previously entered commands.

Save command lines in a log file for future reference.

2. What is the first action in the boot sequence when a switch is powered

on?

load the default Cisco IOS software

load boot loader software

low—level CPU initialization

load a power-on self-test program

3. What must an administrator have in order to reset a lost password on a

router?

a TFTP server

a crossover cable

access to another router

physical access to the router

4. When configuring a switch for SSH access, what other command that is

associated with the login local command is required to be entered on the

switch?

enable secret password

password password

username username secret secret

login block—for seconds attempts number within*seconds*

5. Which command displays information about the auto-MDIX setting for a

specific interface?

show interfaces

show controllers

show processes

show running—config

Explanation: To examine the auto—MDIX setting for a specific interface, the show

controllers ethernet-controller command with the phy keyword should be used.

6. If one end of an Ethernet connection is configured for full duplex and

the other end of the connection is configured for half duplex, where would

late collisions be observed?

on both ends of the connection

on the full—duplex end of the connection

only on serial interfaces

on the half-duplex end of the connection

Explanation: Full—duplex communications do not produce collisions. However, collisions often

occur in half—duplex operations. When a connection has two different duplex configurations, the

half—duplex end will experience late collisions. Collisions are found on Ethernet networks. Serial

interfaces use technologies other than Ethernet.

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CCNA 2 v7 Modules 1 – 4: Switching Concepts, VLANs, and InterVLAN Routing Exam Answers

Switching, Routing, and Wireless Essentials ( Version 7.00) – Switching Concepts, VLANs, and Inter-VLAN Routing Exam

CCNA 2 v7 Modules 1 – 4: Switching Concepts, VLANs, and InterVLAN Routing Full Exam Answers

1. Which tasks can be accomplished by using the command history feature? (Choose two.)

2. What is the first action in the boot sequence when a switch is powered on?

3. What must an administrator have in order to reset a lost password on a router?

4. When configuring a switch for SSH access, what other command that is associated with the login local command is required to be entered on the switch?

5. Which command displays information about the auto-MDIX setting for a specific interface?​

6. If one end of an Ethernet connection is configured for full duplex and the other end of the connection is configured for half duplex, where would late collisions be observed?

7. Which command is used to set the BOOT environment variable that defines where to find the IOS image file on a switch?

8. What does a switch use to locate and load the IOS image?

9. Which protocol adds security to remote connections?

10. What is a characteristic of an IPv4 loopback interface on a Cisco IOS router?​

11. What is the minimum Ethernet frame size that will not be discarded by the receiver as a runt frame?

12. After which step of the switch bootup sequence is the boot loader executed?

13. Which impact does adding a Layer 2 switch have on a network?

14. Which characteristic describes cut-through switching?

15. What is the significant difference between a hub and a Layer 2 LAN switch?

16. Which statement is correct about Ethernet switch frame forwarding decisions?

17. How do switch buffers affect network performance?

18. Which switch characteristic helps keep traffic local and alleviates network congestion?

19. Which switch component reduces the amount of packet handling time inside the switch?

20. Refer to the exhibit. A switch receives a Layer 2 frame that contains a source MAC address of 000b.a023.c501 and a destination MAC address of 0050.0fae.75aa. Place the switch steps in the order they occur. (Not all options are used.)

21. What information is added to the switch table from incoming frames?

22. Which switching method ensures that the incoming frame is error-free before forwarding?

23. Refer to the exhibit.

How many broadcast domains are displayed?

24. Under which two occasions should an administrator disable DTP while managing a local area network? (Choose two.)

25. Which two characteristics describe the native VLAN? (Choose two.)

26. On a switch that is configure0d with multiple VLANs, which command will remove only VLAN 100 from the switch?

27. Refer to the exhibit.

A network administrator is reviewing port and VLAN assignments on switch S2 and notices that interfaces Gi0/1 and Gi0/2 are not included in the output. Why would the interfaces be missing from the output?

28. A network contains multiple VLANs spanning multiple switches. What happens when a device in VLAN 20 sends a broadcast Ethernet frame?

29. Refer to the exhibit.

All workstations are configured correctly in VLAN 20. Workstations that are connected to switch SW1 are not able to send traffic to workstations on SW2. What could be done to remedy the problem?

30. What happens to switch ports after the VLAN to which they are assigned is deleted?

31. Match the IEEE 802.1Q standard VLAN tag field with the description. (Not all options are used.)

32. Refer to the exhibit.

In what switch mode should port G0/1 be assigned if Cisco best practices are being used?

33. Match the DTP mode with its function. (Not all options are used.)

34. Port Fa0/11 on a switch is assigned to VLAN 30. If the command no switchport access vlan 30 is entered on the Fa0/11 interface, what will happen?

35. Which command displays the encapsulation type, the voice VLAN ID, and the access mode VLAN for the Fa0/1 interface?

36. Refer to the exhibit.

A technician is programming switch SW3 to manage voice and data traffic through port Fa0/20. What, if anything, is wrong with the configuration?

37. Which four steps are needed to configure a voice VLAN on a switch port? (Choose four).

38. Refer to the exhibit.

PC1 is unable to communicate with server 1. The network administrator issues the show interfaces trunk command to begin troubleshooting. What conclusion can be made based on the output of this command?

39. Refer to the exhibit.

What is the cause of the error that is displayed in the configuration of inter-VLAN routing on router CiscoVille?

40. Refer to the exhibit.

A network administrator has configured router CiscoVille with the above commands to provide inter-VLAN routing. What command will be required on a switch that is connected to the Gi0/0 interface on router CiscoVille to allow inter-VLAN routing?​

41. A high school uses VLAN15 for the laboratory network and VLAN30 for the faculty network. What is required to enable communication between these two VLANs while using the router-on-a-stick approach?

42. When routing a large number of VLANs, what are two disadvantages of using the router-on-a-stick inter-VLAN routing method rather than the multilayer switch inter-VLAN routing method? (Choose two.)

43. Refer to the exhibit.

A network administrator is verifying the configuration of inter-VLAN routing. Users complain that PCs on different VLANs cannot communicate. Based on the output, what are two configuration errors on switch interface Gi1/1? (Choose two.)

44. Refer to the exhibit.

A network administrator is verifying the configuration of inter-VLAN routing. Users complain that PC2 cannot communicate with PC1. Based on the output, what is the possible cause of the problem?

45. Refer to the exhibit.

A network administrator has configured router CiscoVille with the above commands to provide inter-VLAN routing. What type of port will be required on a switch that is connected to Gi0/0 on router CiscoVille to allow inter-VLAN routing?

46. Refer to the exhibit.

A network administrator is configuring RT1 for inter-VLAN routing. The switch is configured correctly and is functional. Host1, Host2, and Host3 cannot communicate with each other. Based on the router configuration, what is causing the problem?

47. Refer to the exhibit.

48. What is a characteristic of a routed port on a Layer 3 switch?

49. Refer to the exhibit.

A network administrator needs to configure router-on-a-stick for the networks that are shown. How many subinterfaces will have to be created on the router if each VLAN that is shown is to be routed and each VLAN has its own subinterface?

50. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# mdix auto command?

51. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# ip address 172.18.33.88 255.255.255.0 command?

52. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw# configure terminal command?

53. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw# configure terminal command?

54. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# shutdown command?

55. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# shutdown command?

56. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# ipv6 address 2001:db8:a2b4:88::1/64 command?

57. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# exit command?

58. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw> enable command?

58. A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# duplex full command?

60. What type of VLAN should not carry voice and network management traffic?

61. What type of VLAN should not carry voice and network management traffic?

62. What type of VLAN is designed to reserve bandwidth to ensure IP Phone quality?

63. What type of VLAN is initially the management VLAN?

64. What type of VLAN is designed to have a delay of less than 150 ms across the network?

5. Which command displays information about the auto-MDIX setting for a specific interface?

10. What is a characteristic of an IPv4 loopback interface on a Cisco IOS router?

A network administrator has configured router CiscoVille with the above commands to provide inter-VLAN routing. What command will be required on a switch that is connected to the Gi0/0 interface on router CiscoVille to allow inter-VLAN routing?

Which command displays information about the auto-MDIX setting for a specific interface?

Which router bootup sequence is correct?

A network administrator is determining the best placement of VLAN trunk links. Which two types of point-to-point connections utilize VLAN trunking? (Choose two.)