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.
An administrator needs to mount a USB drive with the ext4 filesystem automatically at boot. The drive has a filesystem label 'DATA'. Which entry in /etc/fstab will mount it at /mnt/data with noatime and default mount options?
/dev/sdb1 /mnt/data ext4 noatime,defaults 0 0
Why wrong: Using /dev/sdb1 is not persistent; device names can change.
LABEL=DATA /mnt/data ext4 noatime,defaults 0 0
Correct use of label and options.
LABEL=DATA /mnt/data ext4 defaults 0 0
Why wrong: Missing noatime option.
UUID=DATA /mnt/data ext4 noatime,defaults 0 0
Why wrong: UUID syntax is correct but DATA is a label, not a valid UUID.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
LABEL=DATA /mnt/data ext4 noatime,defaults 0 0
Option B is correct because it uses the filesystem label 'DATA' to identify the USB drive, which is more reliable than a device name like /dev/sdb1 that can change between boots. The mount options 'noatime,defaults' are specified in the correct order, with 'defaults' providing standard mount options (rw, suid, dev, exec, auto, nouser, async) and 'noatime' disabling access time updates to reduce writes. The entry also includes the proper ext4 filesystem type and the mount point /mnt/data.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
/dev/sdb1 /mnt/data ext4 noatime,defaults 0 0
Why it's wrong here
Using /dev/sdb1 is not persistent; device names can change.
LABEL=DATA /mnt/data ext4 noatime,defaults 0 0
Why this is correct
Correct use of label and options.
Related concept
Read the scenario before looking for a memorised answer.
LABEL=DATA /mnt/data ext4 defaults 0 0
Why it's wrong here
Missing noatime option.
UUID=DATA /mnt/data ext4 noatime,defaults 0 0
Why it's wrong here
UUID syntax is correct but DATA is a label, not a valid UUID.
Common exam traps
The trap here is that candidates often default to using /dev/sdX device names (option A) out of habit, forgetting that device names are dynamic and unreliable for persistent mounts, while also overlooking that 'defaults' must be explicitly included when other options like 'noatime' are specified.
Detailed technical explanation
Under the hood, /etc/fstab is read by the mount command during boot (via systemd or init scripts), and the kernel uses the filesystem label stored in the superblock (set with e2label or tune2fs) to resolve LABEL= entries. The 'noatime' option is particularly useful for USB drives to minimize write cycles and extend lifespan, as it prevents the kernel from updating the inode access time on every read. In real-world scenarios, using LABEL or UUID avoids boot failures when USB ports or device enumeration order changes, which is a common issue with static device paths.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Devices, Filesystems and FHS — study guide chapter
Learn the concepts, then practise the questions
Devices, Filesystems and FHS practice questions
Targeted practice on this topic area only
All LPIC-1 questions
522 questions across all exam domains
Linux Professional Institute Certification Level 1 LPIC-1 study guide
Full concept coverage aligned to exam objectives
LPIC-1 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Practise LPIC-1 questions linked to GNU and Unix Commands.
Practise LPIC-1 questions linked to Devices, Filesystems and FHS.
Practise LPIC-1 questions linked to Linux Installation and Package Management.
Practise LPIC-1 questions linked to Essential System Services and Networking.
Practise LPIC-1 questions linked to Administrative Tasks.
Practise LPIC-1 questions linked to Shells, Scripting and Data Management.
Practise LPIC-1 questions linked to System Architecture.
Practise LPIC-1 questions linked to LPIC-1 fundamentals.
Practise LPIC-1 questions linked to LPIC-1 scenario.
Practise LPIC-1 questions linked to LPIC-1 troubleshooting.
Practice this exam
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Devices, Filesystems and FHS — This question tests Devices, Filesystems and FHS — Read the scenario before looking for a memorised answer..
The correct answer is: LABEL=DATA /mnt/data ext4 noatime,defaults 0 0 — Option B is correct because it uses the filesystem label 'DATA' to identify the USB drive, which is more reliable than a device name like /dev/sdb1 that can change between boots. The mount options 'noatime,defaults' are specified in the correct order, with 'defaults' providing standard mount options (rw, suid, dev, exec, auto, nouser, async) and 'noatime' disabling access time updates to reduce writes. The entry also includes the proper ext4 filesystem type and the mount point /mnt/data.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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 →
Last reviewed: Jun 25, 2026
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.