LPIC-1 Devices, Filesystems and FHS Practice Question
This LPIC-1 practice question tests your understanding of devices, filesystems and fhs. 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.
Option D is correct because the /etc/fstab entry must use the full UUID of the filesystem (not the partition) in the format UUID=... followed by the mount point, filesystem type, mount options, dump flag, and fsck order. The UUID uniquely identifies the filesystem regardless of device name changes, making mounts persistent across reboots.
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.
✗
UUID=abcdef01-02 /mnt/data ext4 defaults 0 2
Why it's wrong here
abcdef01-02 is the PARTUUID, not the filesystem UUID.
✗
/dev/sdb1 /mnt/data ext4 defaults 0 2
Why it's wrong here
Using device name is not persistent; device names can change.
This line uses the correct UUID, mount point, filesystem type, and options.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Candidates often confuse the filesystem UUID with the partition UUID (e.g., from GPT partition table). Only the filesystem UUID as shown by blkid works in /etc/fstab.
Trap categories for this question
Command / output trap
There is no label shown; LABEL= requires a label.
Detailed technical explanation
How to think about this question
The UUID in /etc/fstab refers to the filesystem UUID stored in the superblock (e.g., ext4's superblock at offset 0x468), which is generated at mkfs time and remains constant unless explicitly changed with tune2fs. The mount command reads /etc/fstab and uses blkid or libblkid to resolve the UUID to a device node, ensuring the correct partition is mounted even if device names shift (e.g., from /dev/sdb1 to /dev/sdc1 after adding a disk). The fsck order field (the last digit) determines the order in which filesystems are checked at boot; a value of 2 means it will be checked after the root filesystem (which uses 1), while 0 disables checking.
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: UUID=12345678-1234-1234-1234-123456789abc /mnt/data ext4 defaults 0 2 — Option D is correct because the /etc/fstab entry must use the full UUID of the filesystem (not the partition) in the format UUID=... followed by the mount point, filesystem type, mount options, dump flag, and fsck order. The UUID uniquely identifies the filesystem regardless of device name changes, making mounts persistent across reboots.
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.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
This LPIC-1 practice question is part of Courseiva's free LPI 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 LPIC-1 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.