Quiz : CCNA Lan Chapter #4
The first three chapters have gone down well, so why don’t we move onto the next instalment of questions regarding local area networks as taught by the Cisco Certified Network Associate? Answer all of the following questions and see if you have what it takes to move onto the next chapter!
- 1.
Refer to the exhibit. Switch1 is not participating in the VTP management process with the other switches that are shown in the exhibit. What are two possible explanations for this? (Choose two.)
- A.
Switch1 is in client mode.
- B.
Switch2 is in server mode.
- C.
Switch1 is in a different management domain.
- D.
Switch1 has end devices that are connected to the ports.
- E.
Switch1 is using VTP version 1, and Switch2 is using VTP version 2.
Correct Answer(s)
C. Switch1 is in a different management domain.
E. Switch1 is using VTP version 1, and Switch2 is using VTP version 2.Explanation
Two possible explanations for Switch1 not participating in the VTP management process with the other switches could be that Switch1 is in a different management domain and that Switch1 is using VTP version 1 while Switch2 is using VTP version 2.Rate this question:
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- 2.
What are two features of VTP client mode operation? (Choose two.)
- A.
Unable to add VLANs
- B.
Can add VLANs of local significance
- C.
Forward broadcasts out all ports with no respect to VLAN information
- D.
Can only pass VLAN management information without adopting changes
- E.
Can forward VLAN information to other switches in the same VTP domain
Correct Answer(s)
A. Unable to add VLANs
E. Can forward VLAN information to other switches in the same VTP domainExplanation
In VTP client mode operation, the switch is unable to add VLANs to the network. This means that it cannot create or modify VLANs. However, it can still forward VLAN information to other switches in the same VTP domain. This allows the client switch to receive and update its VLAN database based on the information received from the VTP server. This feature ensures that the client switch stays synchronized with the VLAN configuration of the network.Rate this question:
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- 3.
Refer to the exhibit. Switch S1 is in VTP server mode. Switches S2 and S3 are in client mode. An administrator accidentally disconnects the cable from F0/1 on S2. What will the effect be on S2?
- A.
S2 will automatically transition to VTP transparent mode.
- B.
S2 will remove all VLANs from the VLAN database until the cable is reconnected.
- C.
S2 will retain the VLANs as of the latest known revision, but will lose the VLANs if it is reloaded.
- D.
S2 will automatically send a VTP request advertisement to 172.17.99.11 when the cable is reconnected.
Correct Answer
C. S2 will retain the VLANs as of the latest known revision, but will lose the VLANs if it is reloaded.Explanation
When the cable is disconnected from F0/1 on S2, it will not have access to the VTP updates from the VTP server (S1). However, S2 will retain the VLANs as of the latest known revision, meaning it will still have the VLAN information that it received before the cable was disconnected. However, if S2 is reloaded or restarted, it will lose the VLAN information because it won't be able to synchronize with the VTP server.Rate this question:
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- 4.
Refer to the exhibit. All switches in the VTP domain are new. Switch SW1 is configured as a VTP server, switches SW2 and SW4 are configured as VTP clients, and switch SW3 is configured in VTP transparent mode. Which switch or switches receive VTP updates and synchronize their VLAN configuration based on those updates?
- A.
All switches receive updates and synchronize VLAN information.
- B.
Only switch SW2 receives updates and synchronizes VLAN information.
- C.
Only switches SW3 and SW4 receive updates and synchronize VLAN information.
- D.
SW3 and SW4 receive updates, but only switch SW4 synchronizes VLAN information.
Correct Answer
D. SW3 and SW4 receive updates, but only switch SW4 synchronizes VLAN information.Explanation
In this scenario, Switch SW1 is configured as a VTP server, Switch SW2 and SW4 are configured as VTP clients, and Switch SW3 is configured in VTP transparent mode. VTP updates are only sent by VTP servers and received by VTP clients. Since SW2 is a VTP client, it receives the updates from SW1. However, SW3 is in transparent mode, so it does not receive any VTP updates. SW4 is also a VTP client and receives the updates from SW1. However, only SW4 synchronizes the VLAN information based on those updates. Therefore, the correct answer is that SW3 and SW4 receive updates, but only switch SW4 synchronizes VLAN information.Rate this question:
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- 5.
Refer to the exhibit. The switches in the exhibit are connected with trunks within the same VTP management domain. Each switch is labeled with its VTP mode. A new VLAN is added to Switch3. This VLAN does not show up on the other switches. What is the reason for this?
- A.
VLANs cannot be created on transparent mode switches.
- B.
Transparent mode switches do not forward VTP advertisements.
- C.
VLANs created on transparent mode switches are not included in VTP advertisements.
- D.
Server mode switches neither listen to nor forward VTP messages from transparent mode switches.
Correct Answer
C. VLANs created on transparent mode switches are not included in VTP advertisements.Explanation
The reason why the new VLAN added to Switch3 does not show up on the other switches is that VLANs created on transparent mode switches are not included in VTP advertisements. In transparent mode, the switch does not participate in VTP updates and does not forward VTP advertisements to other switches. Therefore, any VLANs created on a transparent mode switch will not be advertised to other switches in the VTP domain.Rate this question:
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- 6.
Refer to the exhibit. S2 was previously used in a lab environment and has been added to the production network in server mode. The lab and production networks use the same VTP domain name, so the network administrator made no configuration changes to S2 before adding it to the production network. The lab domain has a higher revision number. After S2 was added to the production network, many computers lost network connectivity. What will solve the problem?
- A.
Reset the revision number on S2 with either the delete VTP command or by changing the domain name and then changing it back.
- B.
Re-enter all appropriate VLANs, except VLAN 1, manually on Switch1 so that they propagate throughout the network.
- C.
Change S1 to transparent VTP mode to reclaim all VLANs in vlan.dat and change back to server mode.
- D.
Change S2 to client mode so the VLANs will automatically propagate.
Correct Answer
B. Re-enter all appropriate VLANs, except VLAN 1, manually on Switch1 so that they propagate throughout the network.Explanation
The problem is caused by the mismatch in the VTP revision number between the lab and production networks. By re-entering all appropriate VLANs, except VLAN 1, manually on Switch1, the VLAN information will be updated with the correct revision number and propagate throughout the network, resolving the connectivity issue.Rate this question:
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- 7.
What does a client mode switch in a VTP management domain do when it receives a summary advertisement with a revision number higher than its current revision number?
- A.
It suspends forwarding until a subset advertisement update arrives.
- B.
It issues an advertisement request for new VLAN information.
- C.
It increments the revision number and forwards it to other switches.
- D.
It deletes the VLANs not included in the summary advertisement.
- E.
It issues summary advertisements to advise other switches of status changes.
Correct Answer
B. It issues an advertisement request for new VLAN information.Explanation
When a client mode switch in a VTP management domain receives a summary advertisement with a revision number higher than its current revision number, it issues an advertisement request for new VLAN information. This means that the switch is requesting the updated VLAN information from the VTP server in order to synchronize its VLAN database with the latest changes.Rate this question:
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- 8.
What causes a VTP configured switch to issue a summary advertisement?
- A.
A five-minute update timer has elapsed.
- B.
A port on the switch has been shutdown.
- C.
The switch is changed to the transparent mode.
- D.
A new host has been attached to a switch in the management domain.
Correct Answer
A. A five-minute update timer has elapsed.Explanation
A VTP configured switch issues a summary advertisement when a five-minute update timer has elapsed. This timer is responsible for periodically updating the VTP information across the network. When the timer expires, the switch sends out a summary advertisement to inform other switches in the VTP domain about any changes or updates that have occurred. This helps to ensure that all switches have the most up-to-date information and can synchronize their VLAN configurations.Rate this question:
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- 9.
Which two statements are true about VTP pruning? (Choose two.)
- A.
Pruning is enabled by default.
- B.
Pruning can only be configured on VTP servers.
- C.
Pruning must be configured on all VTP servers in the domain.
- D.
VLANs on VTP client-mode switches will not be pruned.
- E.
Pruning will prevent unnecessary flooding of broadcasts across trunks.
Correct Answer(s)
B. Pruning can only be configured on VTP servers.
E. Pruning will prevent unnecessary flooding of broadcasts across trunks.Explanation
VTP pruning is a feature that allows switches to dynamically remove unnecessary VLAN traffic from trunk links. It helps to optimize bandwidth utilization by preventing the flooding of broadcast traffic across trunks. Therefore, the statement "Pruning will prevent unnecessary flooding of broadcasts across trunks" is true. Additionally, VTP pruning can only be configured on VTP servers, as they are responsible for managing VLAN information in the domain. Hence, the statement "Pruning can only be configured on VTP servers" is also true.Rate this question:
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- 10.
Which three VTP parameters must be identical on all switches to participate in the same VTP domain? (Choose three.)
- A.
Revision number
- B.
Domain name
- C.
Pruning
- D.
Domain password
- E.
Version number
Correct Answer(s)
B. Domain name
D. Domain password
E. Version numberExplanation
To participate in the same VTP domain, three parameters must be identical on all switches: domain name, domain password, and version number. The domain name is used to identify the VTP domain, and all switches within the domain must have the same name. The domain password is used for authentication purposes, and again, all switches must have the same password to participate in the domain. The version number represents the VTP version being used, and all switches must have the same version number to ensure compatibility and proper communication within the domain.Rate this question:
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- 11.
Refer to the exhibit. All switches in the network participate in the same VTP domain. What happens when the new switch SW2 with a default configuration and revision number of 0 is inserted in the existing VTP domain Lab_Network?
- A.
The switch operates as a VTP client.
- B.
The switch operates in VTP transparent mode.
- C.
The switch operates as a VTP server and deletes the existing VLAN configuration in the domain.
- D.
The switch operates as a VTP server, but does not impact the existing VLAN configuration in the domain.
- E.
The switch operates as a VTP server in the default VTP domain and does not affect the configuration in the existing VTP domain.
Correct Answer
D. The switch operates as a VTP server, but does not impact the existing VLAN configuration in the domain.Explanation
When the new switch SW2 with a default configuration and revision number of 0 is inserted in the existing VTP domain Lab_Network, it will operate as a VTP server. However, since its revision number is 0, it will not impact the existing VLAN configuration in the domain. This means that the switch will not overwrite or delete any existing VLAN configurations in the network.Rate this question:
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- 12.
Refer to the exhibit. Switches SW1 and SW2 are interconnected via a trunk link but failed to exchange VLAN information. The network administrator issued the show vtp status command to troubleshoot the problem. On the basis of the provided command output, what could be done to correct the problem?
- A.
Switch SW2 must be configured as a VTP client.
- B.
The switches must be interconnected via an access link.
- C.
The switches must be configured with the same VTP domain name.
- D.
Both switches must be configured with the same VTP revision number.
Correct Answer
C. The switches must be configured with the same VTP domain name.Explanation
The provided command output shows that the VTP domain name on SW1 is "CCNA" while on SW2 it is "CCNP". This difference in VTP domain names is causing the switches to fail to exchange VLAN information. To correct the problem, both switches must be configured with the same VTP domain name, which means SW2 needs to be configured with the VTP domain name "CCNA".Rate this question:
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- 13.
Which two statements are true about the implementation of VTP? (Choose two.)
- A.
Switches must be connected via trunks.
- B.
The VTP domain name is case sensitive.
- C.
Transparent mode switches cannot be configured with new VLANs.
- D.
The VTP password is mandatory and case sensitive.
- E.
Switches that use VTP must have the same switch name.
Correct Answer(s)
A. Switches must be connected via trunks.
B. The VTP domain name is case sensitive.Explanation
The first statement is true because VTP messages are only sent over trunk links. The second statement is true because the VTP domain name is case sensitive, meaning that "VLAN" and "vlan" would be considered different domain names.Rate this question:
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- 14.
Refer to the exhibit. Which two facts can be confirmed by this output? (Choose two.)
- A.
If this switch is added to an established network, the other VTP-enabled switches in the same VTP domain will consider their own VLAN information to be more recent than the VLAN information advertised by this switch.
- B.
This switch shows no configuration revision errors.
- C.
This switch has established two-way communication with the neighboring devices.
- D.
This switch is configured to advertise its VLAN configuration to other VTP-enabled switches in the same VTP domain.
- E.
This switch is configured to allows the network manager to maximize bandwidth by restricting traffic to specific network devices.
Correct Answer(s)
A. If this switch is added to an established network, the other VTP-enabled switches in the same VTP domain will consider their own VLAN information to be more recent than the VLAN information advertised by this switch.
D. This switch is configured to advertise its VLAN configuration to other VTP-enabled switches in the same VTP domain.Explanation
The output confirms that the switch is configured to advertise its VLAN configuration to other VTP-enabled switches in the same VTP domain. This can be inferred from the fact that the switch is displaying the VTP configuration revision number and the number of existing VLANs. Additionally, the output suggests that if this switch is added to an established network, the other VTP-enabled switches in the same VTP domain will consider their own VLAN information to be more recent than the VLAN information advertised by this switch. This can be deduced from the fact that the VTP configuration revision number of this switch is lower than the revision numbers of the neighboring devices.Rate this question:
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- 15.
Refer to the exhibit. What information can be learned from the output provided?
- A.
It verifies the configured VTP password.
- B.
It verifies the VTP domain is configured to use VTP version 2.
- C.
It verifies VTP advertisements are being exchanged.
- D.
It verifies the VTP domain name is V1.
Correct Answer
C. It verifies VTP advertisements are being exchanged.Explanation
The output provided verifies that VTP advertisements are being exchanged. This can be inferred from the fact that the output displays information about VTP advertisements, such as the number of advertisements received and the status of the VTP domain. The other options can be ruled out because there is no mention of verifying the VTP password, VTP version, or VTP domain name.Rate this question:
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- 16.
Which two statements describe VTP transparent mode operation? (Choose two.)
- A.
Transparent mode switches can create VLAN management information.
- B.
Transparent mode switches can add VLANs of local significance only.
- C.
Transparent mode switches pass any VLAN management information that they receive to other switches.
- D.
Transparent mode switches can adopt VLAN management changes that are received from other switches.
- E.
Transparent mode switches originate updates about the status of their VLANS and inform other switches about that status.
Correct Answer(s)
B. Transparent mode switches can add VLANs of local significance only.
C. Transparent mode switches pass any VLAN management information that they receive to other switches.Explanation
In VTP transparent mode, switches can add VLANs of local significance only, meaning they can create and modify VLANs on their own switch. They also pass any VLAN management information that they receive to other switches, allowing them to communicate and synchronize VLAN information with other switches in the network.Rate this question:
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- 17.
What statement describes the default propagation of VLANs on a trunked link?Check Answer...
- A.
Only VLAN 1
- B.
All VLANs
- C.
No VLANs
- D.
The native VLAN
Correct Answer
B. All VLANsExplanation
The default propagation of VLANs on a trunked link is to include all VLANs. This means that all VLAN traffic will be allowed to pass through the trunked link by default.Rate this question:
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- 18.
A network administrator is replacing a failed switch with a switch that was previously on the network. What precautionary step should the administrator take on the replacement switch to avoid incorrect VLAN information from propagating through the network?
- A.
Enable VTP pruning.
- B.
Change the VTP domain name.
- C.
Change the VTP mode to client.
- D.
Change all the interfaces on the switch to access ports.
Correct Answer
B. Change the VTP domain name.Explanation
To avoid incorrect VLAN information from propagating through the network when replacing a failed switch, the administrator should change the VTP domain name on the replacement switch. This is because VTP (VLAN Trunking Protocol) is used to synchronize VLAN information across switches in a domain. By changing the VTP domain name, the replacement switch will not receive or propagate any VLAN information from the previous switch, preventing any potential issues caused by incorrect VLAN information.Rate this question:
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- 19.
How are VTP messages sent between switches in a domain?
- A.
Layer 2 broadcast
- B.
Layer 2 multicast
- C.
Layer 3 broadcast
- D.
Layer 3 multicast
- E.
Layer 3 unicast
Correct Answer
B. Layer 2 multicastExplanation
VTP messages are sent between switches in a domain using Layer 2 multicast. Multicasting allows a single packet to be sent to multiple recipients simultaneously, reducing network traffic. In the case of VTP messages, they are sent to a specific multicast address, which ensures that only switches in the same VTP domain receive and process the messages. This helps in synchronizing VLAN information across the switches in the domain.Rate this question:
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- 20.
Which statement is true when VTP is configured on a switched network that incorporates VLANs?
- A.
VTP is only compatible with the 802.1Q standard.
- B.
VTP adds to the complexity of managing a switched network.
- C.
VTP allows a switch to be configured to belong to more than one VTP domain.
- D.
VTP dynamically communicates VLAN changes to all switches in the same VTP domain.
Correct Answer
D. VTP dynamically communicates VLAN changes to all switches in the same VTP domain.Explanation
VTP (VLAN Trunking Protocol) is a Cisco proprietary protocol that allows for the dynamic propagation of VLAN information across a switched network. When VTP is configured on a switched network that incorporates VLANs, it enables switches in the same VTP domain to automatically synchronize and update their VLAN configuration. This means that when a VLAN change is made on one switch, it is communicated to all switches in the same VTP domain, reducing the need for manual configuration on each individual switch. Therefore, the statement "VTP dynamically communicates VLAN changes to all switches in the same VTP domain" is true.Rate this question:
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Feb 02, 2010Quiz Created by
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