EX200 Create and configure file systems Practice Question
This EX200 practice question tests your understanding of create and configure file systems. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Exhibit
Refer to the exhibit.
Contents of /etc/fstab:
# /etc/fstab
# Created by anaconda on Tue Feb 13 10:30:06 2024
#
UUID=12345678-1234-1234-1234-123456789abc / ext4 defaults 1 1
UUID=deadbeef-cafe-babe-0000-000000000000 none swap defaults 0 0
UUID=abcdef01-2345-6789-abcd-ef0123456789 /boot ext4 defaults 1 2
/dev/mapper/vg00-home /home ext4 defaults 1 2
Based on the exhibit, which device is used for swap?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The UUID deadbeef-cafe-babe-0000-000000000000
Option C is correct because the exhibit shows a swap partition with the UUID deadbeef-cafe-babe-0000-000000000000. In Red Hat Enterprise Linux, swap devices are identified by their UUID in /etc/fstab, and the 'sw' or 'swap' keyword in the mount options column confirms this. The other UUIDs correspond to non-swap filesystems or are not present in the exhibit.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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/mapper/vg00-home
Why it's wrong here
Incorrect: that is /home.
✗
/dev/sda2
Why it's wrong here
Incorrect: not in fstab.
✓
The UUID deadbeef-cafe-babe-0000-000000000000
Why this is correct
Correct: swap entry.
Related concept
Read the scenario before looking for a memorised answer.
✗
The UUID abcdef01-2345-6789-abcd-ef0123456789
Why it's wrong here
Incorrect: that is /boot.
✗
The UUID 12345678-1234-1234-1234-123456789abc
Why it's wrong here
Incorrect: that is /.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Red Hat often tests the distinction between device names (like /dev/sda2) and UUIDs, and candidates may mistakenly choose a device name or a UUID from a non-swap filesystem because they overlook the 'swap' keyword in the fstab options column.
Detailed technical explanation
How to think about this question
Swap devices in Linux are managed by the kernel's memory manager and are activated via swapon, which reads /etc/fstab or uses UUIDs for persistent identification. The UUID is stored in the partition's superblock (e.g., for swap, it's in the swap signature), and using UUIDs avoids issues with device name changes (e.g., /dev/sda becoming /dev/sdb). In a real-world scenario, a misconfigured swap UUID can cause boot failures if the system cannot find the swap device, especially after disk reordering.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the EX200 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Create and configure file systems — This question tests Create and configure file systems — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The UUID deadbeef-cafe-babe-0000-000000000000 — Option C is correct because the exhibit shows a swap partition with the UUID deadbeef-cafe-babe-0000-000000000000. In Red Hat Enterprise Linux, swap devices are identified by their UUID in /etc/fstab, and the 'sw' or 'swap' keyword in the mount options column confirms this. The other UUIDs correspond to non-swap filesystems or are not present in the exhibit.
What should I do if I get this EX200 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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