XK0-005 Question #481: Real Exam Question with Answer & Explanation

Question

Employees in the finance department are having trouble accessing the file /opt/work/file. All IT employees can read and write the file. Systems administrator reviews the following output: Which of the following commands would permanently fix the access issue while limiting access to IT and finance department employees?

Options

• Achattr +i file
• Bchown it:finance file
• Cchmod 666 file
• Dsetfacl -m g:finance:rw file

Explanation

{"question_number": 4, "correct_answer": "D", "explanation": "The correct fix is setfacl -m g:finance:rw file, which uses POSIX Access Control Lists (ACLs) to grant read/write access to the finance group without altering the base file permissions that already allow IT access. Option A (chattr +i) makes the file immutable - no one could write to it. Option B (chown it:finance) can only assign one group as the owning group. Option C (chmod 666) gives read/write to all users on the system, which violates the requirement to limit access to IT and finance only. ACLs allow multiple groups to be granted fine-grained permissions simultaneously.", "generated_by": "claude-sonnet", "llm_judge_score": 5}

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