XK0-006 Security Practice Question
An administrator wants to allow the user 'ops' to run only the command '/usr/bin/systemctl restart httpd' via sudo on a specific host 'webserver'. Which /etc/sudoers entry is correct?
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
✓
ops webserver=(root) /usr/bin/systemctl restart httpd
The format is: username hostname=(runas) command. For host-specific, use the hostname. The correct entry is 'ops webserver=(root) /usr/bin/systemctl restart httpd'.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
ops webserver=(root) /usr/bin/systemctl restart httpd
Why this is correct
This restricts to host webserver and runs as root.
- ✗
ops ALL=(root) /usr/bin/systemctl restart httpd
Why it's wrong here
This allows on all hosts, not just webserver.
- ✗
ops webserver=(ALL) /usr/bin/systemctl restart httpd
Why it's wrong here
(ALL) runs as any user, but requirement is root.
- ✗
ops webserver=(root) ALL
Why it's wrong here
ALL allows any command, too permissive.
Go deeper
Related to this question
Learn chapter
User and Group Administration
Key term
systemctl
systemctl is the command-line tool used to inspect, start, stop, enable, or disable services managed by the systemd init system in Linux.
Key term
sudo
sudo is a command-line utility in Unix-like operating systems that allows a permitted user to execute a program as another user, typically the superuser (root), based on security policy settings.
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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.