EX200 Create and configure file systems Practice Question
This EX200 practice question tests your understanding of create and configure file systems. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
Output of 'df -hT':
Filesystem Type Size Used Avail Use% Mounted on
/dev/sda1 xfs 2.0G 1.2G 800M 60% /boot
/dev/mapper/vg00-root
ext4 20G 15G 5.0G 75% /
/dev/mapper/vg00-var
ext4 30G 25G 5.0G 83% /var
/dev/mapper/vg00-tmp
ext4,noexec 5.0G 2.0G 3.0G 40% /tmp
/dev/sdb1 ext4 500G 200G 300G 40% /data
Based on the exhibit, which mount point is mounted with the 'noexec' option?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
/tmp
The /tmp mount point is configured with the 'noexec' option, as shown in the exhibit (e.g., in /etc/fstab or the output of mount or findmnt). This prevents execution of binaries directly from the /tmp filesystem, which is a common security hardening practice to mitigate the risk of attackers running malicious scripts or binaries from a world-writable directory.
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.
✗
/data
Why it's wrong here
Incorrect: no noexec shown.
✗
/
Why it's wrong here
Incorrect: no noexec shown.
✗
/var
Why it's wrong here
Incorrect: no noexec shown.
✓
/tmp
Why this is correct
Correct: shown as ext4,noexec.
Related concept
Read the scenario before looking for a memorised answer.
✗
/boot
Why it's wrong here
Incorrect: no noexec shown.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Red Hat often tests the 'noexec' option on /tmp because candidates may overlook that /tmp is a separate mount point in many Red Hat Enterprise Linux installations, and they might incorrectly assume it inherits the root filesystem's mount options.
Trap categories for this question
Command / output trap
Incorrect: no noexec shown.
Detailed technical explanation
How to think about this question
The 'noexec' mount option is enforced at the VFS (Virtual File System) layer, preventing the kernel from honoring the execute permission bit on any file within that filesystem, even if the file has +x set. This is commonly applied to world-writable directories like /tmp and /var/tmp to prevent privilege escalation via uploaded scripts, but note that 'noexec' can be bypassed if the interpreter (e.g., /bin/sh) is invoked with the script as an argument, since the script itself is read, not executed directly.
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: /tmp — The /tmp mount point is configured with the 'noexec' option, as shown in the exhibit (e.g., in /etc/fstab or the output of mount or findmnt). This prevents execution of binaries directly from the /tmp filesystem, which is a common security hardening practice to mitigate the risk of attackers running malicious scripts or binaries from a world-writable directory.
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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Question Discussion
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