VTP switches use advertisements to exchange information with each other. Which of the
following advertisement types are associated with VTP? (Select all that apply)

A.
Domain advertisements

B.
Advertisement requests from clients

C.
Subset advertisements

D.
Summary advertisements

Explanation:
VTP advertisements include:
Summary Advertisements – These go out every 5 minutes or ever time the VLAN topology
changes, and lists of information about the management domain (VTP version, domain
name, configuration revision number, timestamp, MD5 encryption hash code, & number of
subset advertisements incoming). When there is a configuration change, summary
advertisements are complimented by or more subset advertisements.
Subset advertisements – These are sent out by VTP domain servers after a configuration
change. They list the specifics of the change (VLAN creation / deletion / suspension /
activation / name change / MTU change) and the VLAN parameters (VLAN status, VLAN
type, MTU, VLAN name, VLAN number, SAID value).
Advertisement Requests from Clients- VTP clients request specific VLAN information that
they’re lacking (ie. Client switch is reset and loses its database, or VTP domain membership
changes) so they can be responded by summary and subset advertisements.
CCNP Switching Exam Certification Guide: pages 116-117 David Hucaby &
Tim Boyles, Cisco Press 2001, ISBN 1-58720 000-7