XK0-006 Troubleshooting Practice Question
A Linux server is experiencing high CPU usage. Which TWO commands can be used to identify which processes are consuming the most CPU? (Choose two.)
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
✓
ps aux --sort=-%cpu
top and ps are standard process monitoring tools that show CPU usage.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
ps aux --sort=-%cpu
Why this is correct
ps with sorting shows processes by CPU usage.
- ✓
top
Why this is correct
top shows real-time process CPU usage.
- ✗
iostat
Why it's wrong here
iostat shows disk I/O, not CPU.
- ✗
vmstat
Why it's wrong here
vmstat shows CPU summary but not per-process.
- ✗
free
Why it's wrong here
free shows memory usage only.
Go deeper
Related to this question
Learn chapter
Linux Fundamentals and History
Key term
Process
In IT service management, a process is a structured set of activities designed to accomplish a specific objective, such as managing incidents or changes, by transforming inputs into defined outputs.
Key term
Linux
Linux is an open-source operating system that manages computer hardware and software, widely used in servers, desktops, and embedded systems.
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Written by Johnson Ajibi, MSc IT Security
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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.