Home » Cisco » 200-105 v.2 » Which tertiary switch can take over?
If primary and secondary root switches with priority 16384 both experience catastrophic losses, which tertiary switch can take over?
A. a switch with priority 20480
B. a switch with priority 8192
C. a switch with priority 4096
D. a switch with priority 12288
Correct Answer: A
Explanation/Reference:
Explanation:
In my opinion the switch with the lowest priority becomes the Root so B seems the correct answer but the consensus is on ANSWER A. Can anyone explain this please. The answer is A because the other priorities are lower than root 16384. STP chooses priority first before mac address, so there can’t be any switches with lower priority than the primary or secondary root switches. Otherwise they would have been the root to begin with.
Correct answer is A, because in this scenario the root bridge and the secondary bridge are already chosen with the lowest priority 16384. That means the next root bridge in the network will be with the closest higher priority than the 16384, which is 20480.