LPIC-1 Devices, Filesystems and FHS Practice Question
A system administrator wants to ensure that the filesystem on /dev/sdb1 is checked for errors every 30 mounts. Which command accomplishes this?
⚠ Common exam trap
It's easy for candidates to confuse the `-c` option of `tune2fs` (set mount count) with the `-c` option of `e2fsck` (bad-block check), leading candidates to mistakenly choose `e2fsck -c 30`.
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
✓
tune2fs -c 30 /dev/sdb1
The `tune2fs` command is used to adjust tunable filesystem parameters on ext2/ext3/ext4 filesystems. The `-c` option sets the maximum mount count between filesystem checks; `tune2fs -c 30 /dev/sdb1` configures the filesystem to trigger an `fsck` check every 30 mounts. This is the correct tool for modifying this persistent setting.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
fsck -c 30 /dev/sdb1
Why it's wrong here
fsck runs a check, but -c is not a valid option for setting mount count.
- ✗
e2fsck -c 30 /dev/sdb1
Why it's wrong here
e2fsck is for checking, not setting parameters.
- ✓
tune2fs -c 30 /dev/sdb1
Why this is correct
Sets the mount count threshold to 30.
- ✗
mount -o errors=remount-ro
Why it's wrong here
This option remounts read-only on error but does not set check interval.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This LPIC-1 practice question is part of Courseiva's free LPI 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 LPIC-1 exam.