LPIC-1 Administrative Tasks Practice Question
An administrator wants to allow user 'john' to run all commands as root without a password. Which sudoers entry accomplishes this?
⚠ Common exam trap
Watch out — candidates often confuse the absence of a TAG (which defaults to requiring a password) with passwordless access, or they mistakenly think that specifying 'ALL' without the NOPASSWD tag implies no password is needed.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
john ALL=(ALL) NOPASSWD: ALL
The sudoers entry 'john ALL=(ALL) NOPASSWD: ALL' grants user 'john' permission to run any command as any user (including root) from any host, and the NOPASSWD tag overrides the default password requirement, allowing passwordless execution. This matches the requirement precisely.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
john ALL=(ALL) NOPASSWD: ALL
Why this is correct
Correct: allows all commands without password.
- ✗
john ALL=NOPASSWD: /bin/su
Why it's wrong here
Only allows /bin/su without password.
- ✗
john ALL=(ALL) ALL
Why it's wrong here
This requires a password.
- ✗
john ALL=(ALL) PASSWD: ALL
Why it's wrong here
This explicitly requires a password.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This LPIC-1 practice question is part of Courseiva's free LPI certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the LPIC-1 exam.