A switch is running the Rapid Spanning Tree Protocol (RSTP).
Upon a topology change, what happens to dynamic entries in the L2 forwarding table?
A . Only entries behind the port where TC was received are removed.
B . All entries are removed except for those behind edge ports and the port where TC was received.
C . All entries are removed (purged).
D . All entries are removed except for entries behind edge ports.
E . The aging timer is set to 15 seconds, so idle entries age out.
Answer: B