CCNP Switch Chapter 5 Exam Questions
and Correct Answers
What is the purpose of VTP pruning?
a. Limit the number of VLANs in a domain
b. Stop unnecessary VTP advertisements
c. Limit the extent of broadcast traffic
d. Limit the size of the virtual tree - Answer-C: Limit the extent of broadcast traffic
Which VLAN number is never eligible for VTP pruning?
a. 0
b. 1
c. 1000
d. 1001 - Answer-B: 1
Which of the following might present a VTP problem?
a. Two or more VTP servers in a domain
b. Two servers with the same configuration revision number
c. A server in two domains
d. A new server with a higher configuration revision number - Answer-D: A new server
with a higher configuration revision number
If a VTP server is configured for VTP version 2, what else must happen for successful
VTP communication in a domain?
a. A VTP version 2 password must be set.
b. All other switches in the domain must be version 2 capable.
c. All other switches must be configured for VTP version 2.
d. The VTP configuration revision number must be reset. - Answer-B: All other switches
in the domain must be version 2 capable.
What are unknown unicast frames? - Answer-Unknown Unicast frames are frames
destined for an address that the switch has not yet learned or has forgotten (the MAC
address has aged out of the address table) that must be forwarded out all ports in an
attempt to find the destination.
What does VTP Pruning do for you? - Answer-VTP pruning makes more efficient use of
trunk bandwidth by reducing unnecessary flooded traffic. Broadcast and unknown
unicast frames on a VLAN are forwarded over a trunk link only if the switch on the
receiving end of the trunk has ports in that VLAN.
, Why should you still prune unneeded VLANs from a trunk if you use VTP Pruning? -
Answer-Even when VTP pruning has determined that a VLAN is not needed on a trunk,
an instance of the Spanning Tree Protocol (STP) will run for every VLAN that is allowed
on the trunk link. To reduce the number of STP instances, you manually should "prune"
unneeded VLANs from the trunk and allow only the needed ones.
What does VTP do? - Answer-The VLAN Trunking Protocol (VTP) uses Layer 2 trunk
frames to communicate VLAN information among a group of switches. VTP manages
the addition, deletion, and renaming of VLANs across the network from a central point
of control
What are VTP management domains? - Answer-VTP management domains are areas
with common VLAN requirements. A switch can belong to only one VTP domain. And if
switches are not part of the same domain, they won't share VTP information
What are VTP advertisements? - Answer-VTP advertisements are messages that
contain information about the VTP management domain, VTP revision number, known
VLANs, and specific VLAN parameters. They are only sent over trunks.
What are the different VTP modes? - Answer-- Server mode
- Client mode
- Transparent mode
What is VTP Server mode? - Answer-It's the default VTP mode. In VTP server mode,
the switch has full control over VLAN creation and modification for their domains. All
VTP information is advertised to other switches in the domain, while all received VTP
information is synchronized with the other switches.
What is VTP Client mode? - Answer-VTP clients listen to VTP advertisements from
other switches and modify their VLAN configurations accordingly. They are in passive
listening mode. Received VTP information is forwarded out trunk links to neighboring
switches in the domain, so the switch also acts as a VTP relay. Clients can't create,
change, or delete VLANs.
What is VTP Transparent mode? - Answer-Switches in VTP Transparent mode don't
participate in VTP. They don't advertise their own VLAN configurations and they don't
synchronize their VLAN databases with received advertisements.
How many switches do you need to have in VTP server mode? - Answer-You need to
have at least one VTP server in each VTP domain so that VLANs can be created,
modified, or deleted, and VLAN information can be propagated. Only one VTP server
should create and configure VLANs.
and Correct Answers
What is the purpose of VTP pruning?
a. Limit the number of VLANs in a domain
b. Stop unnecessary VTP advertisements
c. Limit the extent of broadcast traffic
d. Limit the size of the virtual tree - Answer-C: Limit the extent of broadcast traffic
Which VLAN number is never eligible for VTP pruning?
a. 0
b. 1
c. 1000
d. 1001 - Answer-B: 1
Which of the following might present a VTP problem?
a. Two or more VTP servers in a domain
b. Two servers with the same configuration revision number
c. A server in two domains
d. A new server with a higher configuration revision number - Answer-D: A new server
with a higher configuration revision number
If a VTP server is configured for VTP version 2, what else must happen for successful
VTP communication in a domain?
a. A VTP version 2 password must be set.
b. All other switches in the domain must be version 2 capable.
c. All other switches must be configured for VTP version 2.
d. The VTP configuration revision number must be reset. - Answer-B: All other switches
in the domain must be version 2 capable.
What are unknown unicast frames? - Answer-Unknown Unicast frames are frames
destined for an address that the switch has not yet learned or has forgotten (the MAC
address has aged out of the address table) that must be forwarded out all ports in an
attempt to find the destination.
What does VTP Pruning do for you? - Answer-VTP pruning makes more efficient use of
trunk bandwidth by reducing unnecessary flooded traffic. Broadcast and unknown
unicast frames on a VLAN are forwarded over a trunk link only if the switch on the
receiving end of the trunk has ports in that VLAN.
, Why should you still prune unneeded VLANs from a trunk if you use VTP Pruning? -
Answer-Even when VTP pruning has determined that a VLAN is not needed on a trunk,
an instance of the Spanning Tree Protocol (STP) will run for every VLAN that is allowed
on the trunk link. To reduce the number of STP instances, you manually should "prune"
unneeded VLANs from the trunk and allow only the needed ones.
What does VTP do? - Answer-The VLAN Trunking Protocol (VTP) uses Layer 2 trunk
frames to communicate VLAN information among a group of switches. VTP manages
the addition, deletion, and renaming of VLANs across the network from a central point
of control
What are VTP management domains? - Answer-VTP management domains are areas
with common VLAN requirements. A switch can belong to only one VTP domain. And if
switches are not part of the same domain, they won't share VTP information
What are VTP advertisements? - Answer-VTP advertisements are messages that
contain information about the VTP management domain, VTP revision number, known
VLANs, and specific VLAN parameters. They are only sent over trunks.
What are the different VTP modes? - Answer-- Server mode
- Client mode
- Transparent mode
What is VTP Server mode? - Answer-It's the default VTP mode. In VTP server mode,
the switch has full control over VLAN creation and modification for their domains. All
VTP information is advertised to other switches in the domain, while all received VTP
information is synchronized with the other switches.
What is VTP Client mode? - Answer-VTP clients listen to VTP advertisements from
other switches and modify their VLAN configurations accordingly. They are in passive
listening mode. Received VTP information is forwarded out trunk links to neighboring
switches in the domain, so the switch also acts as a VTP relay. Clients can't create,
change, or delete VLANs.
What is VTP Transparent mode? - Answer-Switches in VTP Transparent mode don't
participate in VTP. They don't advertise their own VLAN configurations and they don't
synchronize their VLAN databases with received advertisements.
How many switches do you need to have in VTP server mode? - Answer-You need to
have at least one VTP server in each VTP domain so that VLANs can be created,
modified, or deleted, and VLAN information can be propagated. Only one VTP server
should create and configure VLANs.
