VTP switches use advertisements to exchange information with each other. Which of the following advertisement types are associated with VTP? (Choose three)

A.
Domain advertisements

B.
Advertisement requests from clients

C.
Subset advertisements

D.
Summary advertisements

Explanation:

VTP advertisements include:
1. 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.
2. 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).
3. 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. Reference: CCNP Switching Exam Certification Guide: pages 116-117 David Hucaby & Tim Boyles, Cisco Press 2001, ISBN 1-58720 000-7