Observe the topology in the exhibit. HSRP is configured between RTB and RTC with RTC
as the active router. SW2 is configured as the root bridge for the Spanning Tree Protocol.
What will happen if the serial connection on RTC is down?
A.
STP will not need to be recalculated because RTB will take over as active router.
B.
RTB and RTC will flap between active and standby because the timers for STP are
greater than the timers for HSRP.
C.
All traffic will automatically forward to RTB.
D.
SW3 will take over as the new root bridge.