XK0-006 System Management Practice Question
An administrator needs to give a user read and write access to a file without changing the file's group or adding the user to any group. Which method should be used?
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
✓
setfacl -m u:username:rw file
Access Control Lists (ACLs) allow setting permissions for specific users beyond the traditional owner/group/others model, without changing group membership.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
chown user: file
Why it's wrong here
Changing owner gives the user full control, but may not be desired.
- ✗
chmod u+rw file
Why it's wrong here
This gives read/write to the owner only, not a different user.
- ✓
setfacl -m u:username:rw file
Why this is correct
ACL allows specific user permissions without changing group.
- ✗
chgrp to user's primary group
Why it's wrong here
Changing group would affect all group members.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This XK0-006 practice question is part of Courseiva's free CompTIA 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 XK0-006 exam.