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hardMultiple ChoiceObjective-mapped

XK0-006 Practice Question: Refer to the exhibit

Exhibit

ps aux | grep apache
root      1234  0.0  0.1  12345  6789 ?        Ss   10:00   0:00 /usr/sbin/httpd -k start
apache    1235  0.2  2.3  45678 23456 ?        S    10:00   0:05 /usr/sbin/httpd -k start
apache    1236  0.3  2.4  45678 24000 ?        S    10:00   0:06 /usr/sbin/httpd -k start
apache    1237  0.0  0.1     0     0 ?        Z    10:05   0:00 [httpd] <defunct>

# cat /proc/sys/kernel/pid_max
32768

Refer to the exhibit. A web server is experiencing performance issues. Based on the process list shown, which action should the administrator take first?

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

✓

Identify and restart the parent process to clean up the zombie.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • ✗

    Increase the PID limit in /proc/sys/kernel/pid_max.

    Why it's wrong here

    The PID limit is not the issue; there are only a few processes.

  • ✗

    Kill the parent process of the zombie (PID 1234).

    Why it's wrong here

    Killing the parent would not clean the zombie; the zombie's parent is init after reparenting.

  • ✓

    Identify and restart the parent process to clean up the zombie.

    Why this is correct

    The zombie's parent (PID 1234 - httpd master) should reap it. Restarting the master process will clean orphans.

  • ✗

    Terminate the zombie process with SIGKILL.

    Why it's wrong here

    Zombies are already dead; they cannot be killed. The parent must reap them.

About these practice questions

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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.