LFCS Storage Management Practice Question

Exhibit

Refer to the exhibit.

NAME   MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
sda      8:0    0   40G  0 disk 
├─sda1   8:1    0  500M  0 part /boot
└─sda2   8:2    0 39.5G  0 part /
sdb      8:16   0   20G  0 disk 
└─sdb1   8:17   0   20G  0 part /home

Refer to the exhibit. Which device is the root filesystem mounted from?

⚠ Common exam trap

Many candidates confuse the root filesystem with the boot partition (e.g., /dev/sda1) or assume the first partition (sda1) is always the root, but the mount output clearly shows /dev/sda2 mounted on `/`.

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

✓

/dev/sda2

The root filesystem is mounted from /dev/sda2 because the output of the `mount` command shows that the device `/dev/sda2` is mounted on `/` (the root directory). This is the standard location for the root filesystem in Linux, and the mount point `/` uniquely identifies it.

Answer analysis

Option-by-option breakdown

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

✓
/dev/sda2
Why this is correct
Mounted on /.
✗
/dev/sdb
Why it's wrong here
Not a filesystem, the whole disk.
✗
/dev/sdb1
Why it's wrong here
Mounted on /home.
✗
/dev/sda1
Why it's wrong here
Mounted on /boot.

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LFCS Storage Management Practice Question

Exhibit

Why each option matters

Option-by-option breakdown

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