LFCS Storage Management Practice Question
Which TWO commands can be used to mount a filesystem on /dev/sdb1 to /mnt/data?
⚠ Common exam trap
Linux Foundation often tests the argument order of the mount command, trapping candidates who confuse the device and mount point positions, especially when combined with options like `-t` or `-o`.
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
✓
mount /dev/sdb1 /mnt/data
The standard syntax for the mount command is `mount [options] <device> <mountpoint>`, so `mount /dev/sdb1 /mnt/data` correctly specifies the device first and the target directory second. Option C is also correct because it explicitly specifies the filesystem type with `-t ext4`, which is a valid and common practice when mounting a filesystem, ensuring the kernel uses the correct driver.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
mount /mnt/data /dev/sdb1
Why it's wrong here
Arguments reversed: device then mount point.
- ✓
mount /dev/sdb1 /mnt/data
Why this is correct
Standard mount command; works if filesystem is recognized.
- ✓
mount -t ext4 /dev/sdb1 /mnt/data
Why this is correct
Specifies filesystem type and works.
- ✗
mount -o loop /dev/sdb1 /mnt/data
Why it's wrong here
-o loop is for loop devices (files), not block devices.
- ✗
mount -t auto /dev/sdb1 /mnt/data -o loop
Why it's wrong here
Loop option not needed for block devices.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This LFCS practice question is part of Courseiva's free Linux Foundation 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 LFCS exam.