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200-301 · Question #306
200-301 Question #306: Real Exam Question with Answer & Explanation
The correct answer is B: forwarding. When PortFast is enabled on a switch port, it bypasses the normal STP listening, learning, and blocking states, transitioning directly to the forwarding state.
Submitted by jian89· Mar 5, 2026
Question
Which state does the switch port move to when PortFast is enabled?
Options
- Alearning
- Bforwarding
- Cblocking
- Dlistening
Explanation
When PortFast is enabled on a switch port, it bypasses the normal STP listening, learning, and blocking states, transitioning directly to the forwarding state.
Common mistakes.
- A. The learning state is skipped when PortFast is enabled, as the port does not need to learn MAC addresses before forwarding.
- C. The blocking state is skipped when PortFast is enabled; otherwise, the port would initially block traffic.
- D. The listening state is skipped when PortFast is enabled, as the port does not need to listen for BPDUs before transitioning.
Concept tested. STP PortFast operation
Topics
#PortFast#STP port states
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