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LPIC-1 Devices, Filesystems and FHS Practice Question

Exhibit

Exhibit: Output of `lsblk`
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda      8:0    0    50G  0 disk
├─sda1   8:1    0   500M  0 part /boot
├─sda2   8:2    0  49.5G  0 part /
├─sda3   8:3    0     2G  0 part [SWAP]
sdb      8:16   0   100G  0 disk
└─sdb1   8:17   0   100G  0 part /data

Refer to the exhibit. How many physical disks are present in the system?

⚠ Common exam trap

The trap here is that candidates often count partition entries (e.g., sda1, sda2, sdb1) as separate physical disks, leading them to overcount the actual number of drives.

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

✓

2

The output shows two SCSI disks: /dev/sda and /dev/sdb. Each device file represents a physical disk, so there are exactly two physical disks present. The partitions (sda1, sda2, sdb1) are subdivisions of those disks and do not count as separate physical disks.

Answer analysis

Option-by-option breakdown

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

  • ✗

    3

    Why it's wrong here

    Incorrect: Only two disks.

  • ✓

    2

    Why this is correct

    Correct: Two disks: sda and sdb.

  • ✗

    4

    Why it's wrong here

    Incorrect: Only two disks.

  • ✗

    1

    Why it's wrong here

    Incorrect: There are two disks visible: sda and sdb.

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JA

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.