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XK0-006 Practice Question: Which TWO commands can be used to check the…
Which TWO commands can be used to check the kernel version currently running on a system? (Choose two.)
⚠ Common exam trap
It's easy for candidates to confuse distribution release information (lsb_release -a) with kernel version information, or incorrectly assume sysctl has a 'kernel.version' parameter similar to other kernel parameters.
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
✓
cat /proc/version
The file /proc/version contains the kernel version string, including the version number and compiler information, as maintained by the kernel at boot time. Reading this file with cat displays the exact kernel version currently running on the system.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
sysctl kernel.version
Why it's wrong here
Invalid; sysctl does not have kernel.version parameter.
- ✓
cat /proc/version
Why this is correct
Contains kernel version string.
- ✗
lsb_release -a
Why it's wrong here
Shows distribution release information.
- ✗
uptime
Why it's wrong here
Shows system uptime, not kernel version.
- ✓
uname -r
Why this is correct
Displays kernel release.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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