EX200 Deploy, configure, and maintain systems Practice Question
This EX200 practice question tests your understanding of deploy, configure, and maintain 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
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/rhel-root 50G 45G 5.2G 90% /
/dev/sda1 1014M 312M 703M 31% /boot
Refer to the exhibit. An administrator is unable to write to /tmp because the filesystem is full. What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The root filesystem is nearly full at 90% usage
The exhibit shows that the root filesystem (/) is at 90% usage, while /tmp is not a separate filesystem but a directory under the root. Since /tmp resides on the root filesystem, when the root filesystem is nearly full, there is no space left for writing to /tmp, causing the write failure.
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.
✗
The /tmp is a separate filesystem
Why it's wrong here
The exhibit only shows / and /boot, no separate /tmp.
✗
There is a filesystem quota enabled
Why it's wrong here
No evidence of quotas in the exhibit.
✗
The /boot partition is too small
Why it's wrong here
/boot is 31% full, not an issue for /tmp.
✓
The root filesystem is nearly full at 90% usage
Why this is correct
/tmp is part of root; with only 5.2GB free, it may be full.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Red Hat often tests the misconception that /tmp is always a separate filesystem, leading candidates to overlook the root filesystem's usage as the cause of write failures.
Trap categories for this question
Command / output trap
The exhibit only shows / and /boot, no separate /tmp.
Detailed technical explanation
How to think about this question
The `df -h` command shows disk usage for mounted filesystems; if /tmp is not listed as a separate mount point, it is a subdirectory of the root filesystem. When the root filesystem reaches high usage (e.g., 90%), the available inodes or blocks may be exhausted, preventing writes to any directory under it, including /tmp. This is a common scenario where administrators mistakenly assume /tmp is a separate filesystem or overlook the root filesystem's capacity.
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.
Deploy, configure, and maintain systems — This question tests Deploy, configure, and maintain systems — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The root filesystem is nearly full at 90% usage — The exhibit shows that the root filesystem (/) is at 90% usage, while /tmp is not a separate filesystem but a directory under the root. Since /tmp resides on the root filesystem, when the root filesystem is nearly full, there is no space left for writing to /tmp, causing the write failure.
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.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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