Cisco
200-301 · Question #363
Refer to the exhibit. What is the result if Gig1/11 receives an STP BPDU?
The correct answer is D. The port goes into error-disable state. BPDU Guard feature protects the port from receiving STP BPDUs, however the port can transmit STP BPDUs. When a STP BPDU is received on a BPDU Guard enabled port, the port is shutdown and the state of the port changes to ErrDis (Error-Disable) state.
Submitted by stefanr· Mar 5, 2026Security Fundamentals
Question
Refer to the exhibit. What is the result if Gig1/11 receives an STP BPDU?
Exhibits
Options
- AThe port transitions to STP blocking
- BThe port transitions to the root port
- CThe port immediately transitions to STP forwarding.
- DThe port goes into error-disable state
How the community answered
(43 responses)- A16% (7)
- B7% (3)
- C5% (2)
- D72% (31)
Explanation
BPDU Guard feature protects the port from receiving STP BPDUs, however the port can transmit STP BPDUs. When a STP BPDU is received on a BPDU Guard enabled port, the port is shutdown and the state of the port changes to ErrDis (Error-Disable) state.
Topics
#BPDU Guard#STP BPDU#Error-disable state#Switch port security
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