A. CDPmust be enabled on all switches in theVTP management domain.
B. All switches in the VTPdomain must run the same version of VTP.
C. When using secure mode VTP， only configure management domain passwords onVTP servers.
D. EnablingVTP pruning on a server willenable the feature for the entire management domain.
E. Use of theVTPmulti-domain feature should be restricted to migration and temporary implementation.

A.VTP messages are sent out all switch-switch connections.
B.VTP L2 messages are communicated to neighbors using CDP.
C.VTP manages addition， deletion， and renaming of VLANs 1 to 4094.
D.VTP pruning restricts flooded traffic， increasing available bandwidth.
E.VTP V2 can only be used in a domain consisting of V2 capable switches.
F.VTP V2 performs consistency checks on all sources of VLAN information.