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XK0-006 Practice Question: That the /home partition is running out of space

A user reports that the /home partition is running out of space. Which command identifies the largest directories under /home?

⚠ Common exam trap

Candidates often confuse `df` (filesystem-level usage) with `du` (directory-level usage), or assume `ls -lhS` or `find -size` can accurately report directory disk consumption, when only `du` correctly accounts for all nested file contents.

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

✓

du -sh /home/*

`du -sh /home/*` calculates the disk usage of each top-level item under /home, with `-s` summarizing each directory and `-h` providing human-readable sizes. This directly identifies the largest directories consuming space, which is exactly what the user needs to troubleshoot the /home partition running out of space.

Answer analysis

Option-by-option breakdown

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

  • ✓

    du -sh /home/*

    Why this is correct

    du -sh gives human-readable totals for each top-level item under /home.

  • ✗

    df -h /home

    Why it's wrong here

    df shows filesystem disk usage, not per-directory details.

  • ✗

    ls -lhS /home

    Why it's wrong here

    ls lists files in the directory, not recursively, and does not calculate total sizes of subdirectories.

  • ✗

    find /home -type d -size +100M

    Why it's wrong here

    find with -size on directories is unreliable for directory sizes; du is the standard tool.

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JA

Written by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

This XK0-006 practice question is part of Courseiva's free CompTIA 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 XK0-006 exam.