SK0-005 Question #152: Real Exam Question with Answer & Explanation

Question

An administrator is investigating a physical server that will not boot into the OS. The server has three hard drives configured in a RAID 5 array. The server passes POST, but the OS does not load. The administrator verifies the CPU and RAM are both seated correctly and checks the dual power supplies. The administrator then verifies all the BIOS settings are correct and connects a bootable USB drive in the server, and the OS loads correctly. Which of the following is causing the issue?

Options

• AThe page file is too small.
• BThe CPU has failed.
• CThere are multiple failed hard drives.
• DThere are mismatched RAM modules.
• ERAID 5 requires four drives

Explanation

{"question_number": 2, "question_summary": "Server with RAID 5 array passes POST but won't boot OS; boots fine from USB", "correct_answer": "C. There are multiple failed hard drives", "explanation": "RAID 5 uses distributed parity across a minimum of 3 drives and can tolerate exactly one drive failure without data loss. If two or more drives in the array fail, the RAID controller cannot reconstruct the data, making the array unavailable. The server passes POST (proving CPU and RAM are functional), the BIOS settings are correct, and a USB boot works (confirming the system hardware is operational), all of which point to the storage array as the failure point. Options A and D are ruled out by the fact that POST passes and hardware is seated correctly. Option E is incorrect because RAID 5 requires a minimum of 3 drives, not 4.", "generated_by": "claude-sonnet", "llm_judge_score": 3}

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