EX200 Deploy, configure, and maintain systems Practice Question
Which TWO commands can be used to display available disk space on mounted filesystems in a human-readable format?
⚠ Common exam trap
The trap is that `du -sh` shows directory usage, not available space on filesystems. Candidates may mistakenly think it shows available space, but only `df -h` directly provides that information.
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
✓
df -h
The `df -h` command displays disk space usage for mounted filesystems, with the `-h` flag converting sizes into human-readable units (e.g., KB, MB, GB). This directly meets the requirement of showing available disk space on mounted filesystems in a human-readable format. The `du -sh` command shows the total disk usage of a specific directory or file, not available space on filesystems, so it does not satisfy the question's requirement.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
blkid
Why it's wrong here
blkid displays block device attributes (UUID, label), not disk space usage.
- ✓
df -h
Why this is correct
df -h correctly shows available disk space on mounted filesystems in human-readable format.
- ✗
ls -lh
Why it's wrong here
ls -lh lists file sizes, not filesystem disk space.
- ✗
du -sh
Why it's wrong here
du -sh shows the total size of a directory or file, not available space on mounted filesystems.
- ✗
fdisk -l
Why it's wrong here
fdisk -l displays partition tables, not filesystem usage.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This EX200 practice question is part of Courseiva's free Red Hat 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 EX200 exam.