Correct Answer: C
Section: LAN Switching Technologies
Explanation/Reference:
Explanation:
Per VLAN Spanning Tree (PVST)
Introduction
http://www.cisco.com/en/US/tech/tk389/tk621/tk846/tsd_technology_support_sub-protocol_home.html
Per VLAN Spanning Tree (PVST) maintains a spanning tree instance for each VLAN configured in the network. This means a switch can be the root bridge of a VLAN while another switch can be the root bridge of other VLANs in a common topology. For example, Switch 1 can be the root bridge for Voice data while Switch 2 can be the root bridge for Video data. If designed correctly, it can optimize the network traffic.
http://www.ciscopress.com/articles/article.asp?p=102157&seqNum=4
h
C
b