350-601 Question #167: Real Exam Question with Answer & Explanation

Question

A network engineer must configure a Cisco MDS switch to use the local user database for console access if all AAA servers are unreachable. Which configuration should be applied to complete this task?

Options

• Aaaa authentication login default fallback error local
• Baaa authentication login default local
• Caaa authentication login console local
• Daaa authentication login console fallback error local

Explanation

{"question_number": 2, "question": "A network engineer must configure a Cisco MDS switch to use the local user database for console access if all AAA servers are unreachable. Which configuration should be applied?", "correct_answer": "D. aaa authentication login console fallback error local", "explanation": "The keyword 'console' scopes the AAA authentication rule specifically to console port access (vs. 'default' which applies to all login methods). The 'fallback error local' clause instructs the switch to fall back to the local user database only when AAA servers return an error or are unreachable-not when authentication simply fails. Option A uses 'default' (applies to all interfaces, not just console). Option C ('aaa authentication login console local') bypasses AAA entirely and always uses local, which does not meet the requirement. Option D correctly targets the console and uses conditional fallback.", "generated_by": "claude-sonnet", "llm_judge_score": 2}

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