A network engineer is implementing a new VLAN design on an existing structure. The plan is to rename the VTP domain and implement 25 VLANs. The engineer takes an existing production switch to the lab, enters the proposed VLANs, and changes the VTP domain name. All new VLANs are verified present with the show vlan command. The network administrator subsequently decides to retain the original domain name, so the name is changed back and the switch reconnected to the production network. The show vlan command shows that none of the new VLANs are synchronizing on the other network switches. All switches can ping each other and trunking is correct. What is the likely problem?

A network engineer is implementing a new VLAN design on an existing structure. The plan is to rename the VTP domain and implement 25 VLANs. The engineer takes an existing production switch to the lab, enters the proposed VLANs, and changes the VTP domain name. All new VLANs are verified present with the show vlan command. The network administrator subsequently decides to retain the original domain name, so the name is changed back and the switch reconnected to the production network. The show vlan command shows that none of the new VLANs are synchronizing on the other network switches. All switches can ping each other and trunking is correct. What is the likely problem?

• No ports are assigned to the new VLANs yet, so VTP pruning is disabling them.
• The switch rejoined the network with the revision number set to zero.
• The engineer failed to save the new VLAN configuration to NVRAM.
• The other switches are all in server mode by default and do not accept VTP updates.

Exam with this question: CCNA 3 Exploration v4.0 Chapter 4 Quiz