Cisco CCNA mock exam questions sample test – Question 129

.You are the network administrator for your company. You have implemented VLAN Trunking Protocol (VTP) in your network. However, you have found that VTP is not synchronizing
VLAN information.
Which of the following items should be verified to resolve the problem? (Choose three.)

A. Ensure that switches in the VTP domain are configured with VTP version 1 and version 2.
B. Ensure that VLANs are active on at least one switch on the VTP domain.
C. Ensure that all of the ports that interconnect switches are configured as trunks and are trunking properly.
D. Ensure that the VTP domain name is the same on all switches in the domain.
E. Ensure that identical passwords are configured on all VTP switches.


Correct Answer: CDE

Explanation:
The following is a list of the steps to take if VTP fails to exchange VLAN information:
Ensure that all of the ports that interconnect switches are configured as trunks and are trunking properly.
Ensure that VLANs are active in all the devices.
Ensure that at least one switch is acting as a VTP server in the VTP domain.
Ensure that the VTP domain name is the same for all switches in the domain. The VTP domain name is case-sensitive.
Ensure that the VTP password is the same for all switches in the domain.
Ensure that the same VTP version is used by every switch in the domain. VTP version 1 and version 2 are not compatible on switches in the same VTP domain.
You should not ensure that switches are configured with VTP version 1 and version 2 in the domain, because VTP version 1 and version 2 are incompatible. VTP version 1 is the
default on all Cisco switches.
You should not ensure that VLANs are active on at least one switch in the VTP domain, because VLANs should be active in all of the devices in a VTP domain.
Objective:
LAN Switching Fundamentals
Sub-Objective:
Configure, verify, and troubleshoot VLANs (normal/extended range) spanning multiple switches