What mechanism must be in use?
If a switch receives a superior BPDU and goes directly into a blocked state, what mechanism must be in use?
A. loop guard
B. root guard
C. EtherChannel guard
D. BPDU guard
Correct Answer: B
If a switch receives a superior BPDU and goes directly into a blocked state, what mechanism must be in use?
A. loop guard
B. root guard
C. EtherChannel guard
D. BPDU guard
Correct Answer: B