What is the purpose of VTP in a Cisco network?
To manage VLAN configuration consistency across switches in the same VTP domain.
What are the three main VTP modes?
Server, Client, Transparent.
Which VTP mode allows creation, modification, and deletion of VLANs?
Server mode.
Which VTP mode forwards VTP advertisements but does not save VLAN information?
Client mode.
Which VTP mode forwards VTP advertisements and allows local VLAN changes?
Transparent mode.
What command is used to set a switch to VTP server mode?
vtp mode server
What command sets the VTP domain name?
vtp domain [domain-name]
What is the purpose of the VTP password?
To secure VTP updates using MD5 authentication.
What command sets a VTP password?
vtp password [password]
Which VTP versions support extended VLANs (1006-4094)?
VTP version 3 only.
What command enables VTP version 3?
vtp version 3
What is the default VTP mode on a Cisco switch?
Server mode.
What is the VTP pruning feature used for?
To limit VLAN information to only switches that require it, reducing unnecessary traffic.
How do you enable VTP pruning?
vtp pruning
What happens if a switch with a higher configuration revision number is added to a VTP domain?
It can overwrite the VLAN database on other switches, potentially causing outages.
How can you reset the VTP configuration revision number?
Change the VTP domain name to a different name, then back.
Which command shows the current VTP configuration and status?
show vtp status
What is a VTP primary server in version 3?
The switch allowed to make VLAN changes in VTP v3; it must be manually configured.
What command sets a VTP v3 primary server?
vtp primary vlan
Which VTP mode stores VLAN information in the vlan.dat file?
Server and Client modes.
How are VTP advertisements transmitted?
Using multicast frames every 5 minutes or when there’s a VLAN change.
