Which two elements contribute to the bridge ID when configuring RSTP? (Choose 2)

Which two elements contribute to the bridge ID when configuring RSTP? (Choose 2)
A . designated MAC address
B . bridge priority
C . extended system ID
D . root ID
E . bridge address

View Answer

Answer: A,B

Explanation:

The bridge ID consists of a configurable bridge priority and the MAC address of the bridge.

Reference: http://www.juniper.net/techpubs/software/junos/junos95/swconfig-layer-2/conf-stp.html#conf­bridge-priority