LPIC-1 Devices, Filesystems and FHS Practice Question
This LPIC-1 practice question tests your understanding of devices, filesystems and fhs. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.
Refer to the exhibit. The system administrator wants to ensure the /data filesystem is mounted only if it is available at boot time, and if not, the system should continue to boot without error. Which change should be made to the /etc/fstab entry for /data?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Add the 'nofail' option and set the last field to 0
The 'nofail' mount option tells systemd that if the filesystem fails to mount at boot, the boot process should continue without error. Setting the last field (fs_passno) to 0 disables filesystem checks, which is appropriate for a non-critical filesystem that may not be present. This combination ensures the system boots normally even if /data is unavailable.
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.
✗
Change the mount point to /mnt/data
Why it's wrong here
Changing the mount point does not affect boot behavior.
✗
Change the filesystem type to auto
Why it's wrong here
Setting filesystem type to 'auto' does not handle missing device; it will still halt if not found.
✗
Add the 'noauto' option
Why it's wrong here
'noauto' prevents automatic mounting at boot, but the administrator wants it mounted if available, not skipped entirely.
✓
Add the 'nofail' option and set the last field to 0
Why this is correct
'nofail' allows boot to continue if the device is missing, and setting the pass number to 0 prevents fsck errors.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse 'noauto' (which prevents mounting at boot) with 'nofail' (which allows boot to continue if mount fails), or they overlook the need to set the fs_passno field to 0 to avoid fsck errors on a missing device.
Detailed technical explanation
How to think about this question
Under systemd, the 'nofail' option is parsed by systemd-fstab-generator to create a mount unit with 'Before=local-fs.target' but without 'Requires=local-fs.target', so a mount failure does not block the target. The fs_passno field (6th column) controls the order of fsck checks at boot; setting it to 0 skips checks entirely, which is safe for non-critical filesystems that might be absent. In a real-world scenario, this is commonly used for removable media or network filesystems like NFS where availability is not guaranteed.
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 LPIC-1 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.
Devices, Filesystems and FHS — This question tests Devices, Filesystems and FHS — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Add the 'nofail' option and set the last field to 0 — The 'nofail' mount option tells systemd that if the filesystem fails to mount at boot, the boot process should continue without error. Setting the last field (fs_passno) to 0 disables filesystem checks, which is appropriate for a non-critical filesystem that may not be present. This combination ensures the system boots normally even if /data is unavailable.
What should I do if I get this LPIC-1 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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