XK0-005 Question #31: Real Exam Question with Answer & Explanation

Question

A Linux administrator needs the "tech" account to have the option to run elevated commands as root. Which of the following commands would BEST meet this goal?

Options

• A$ su - tech -c "/bin/bash"
• B# usermod -aG wheel tech
• C# sudo -I tech
• D# groupadd -u tech -g root

Explanation

{"question_number": 4, "question": "A Linux administrator needs the 'tech' account to have the option to run elevated commands as root. Which of the following commands would BEST meet this goal?", "correct_answer": "B", "explanation": "On Red Hat-based systems (RHEL, CentOS, Fedora), membership in the 'wheel' group grants a user the ability to use 'sudo' to run elevated commands as root. 'usermod -aG wheel tech' appends (-a) the 'tech' user to the supplementary group (-G) 'wheel', giving them sudo access without changing their primary group. Option A ('su - tech -c "/bin/bash"') switches to the tech user's environment and runs bash - it does not grant elevated privileges. Option C ('sudo -I tech') is not a valid sudo flag combination for granting persistent elevated access. Option D ('groupadd -u tech -g root') misuses the groupadd flags and does not correctly add 'tech' to the root group.", "generated_by": "claude-sonnet", "llm_judge_score": 3}

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