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350-401 · Question #254
350-401 Question #254: Real Exam Question with Answer & Explanation
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Submitted by minji_kr· Mar 6, 2026ERROR: Domain list not provided in the prompt.
Question
Refer to the exhibit. While troubleshooting an issue with a blocked switch port, you find this error in the switch log. Which action should you take first to locate the problem?
Options
- ACheck the attached switch for a BPDU filter.
- BTest the link for unidirectional failures.
- CExecute the show interface command to check FastEthernet0/1.
- DCheck the attached switch for an interface configuration issue.
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Topics
#STP troubleshooting#BPDU filter#Switch port blocking