LFCS Storage Management Practice Question
An administrator is configuring LVM and wants to display information about physical volumes, volume groups, and logical volumes. Which two commands provide this information? (Choose two.)
⚠ Common exam trap
It's easy for candidates to confuse the 'scan' commands (option A) with 'display' commands, assuming that scanning also shows detailed information, when in fact `pvscan` only lists discovered PVs without showing attributes like PE size or free space.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
pvdisplay, vgdisplay, lvdisplay
Option D is correct because pvdisplay, vgdisplay, and lvdisplay are the LVM reporting commands that print detailed information about physical volumes, volume groups, and logical volumes respectively, including attributes such as size, UUID, PE size, and allocation policy. Option E is also correct because pvs, vgs, and lvs are the LVM reporting commands that produce concise, column-oriented summaries of physical volumes, volume groups, and logical volumes, making them ideal for quickly displaying this information. Option A is incorrect because pvscan, vgscan, and lvscan scan for and activate LVM metadata/devices rather than displaying detailed configuration information. Option B is incorrect because pvck, vgck, and lvck check and repair LVM metadata consistency, not report volume information. Option C is incorrect because pvcreate, vgcreate, and lvcreate create physical volumes, volume groups, and logical volumes rather than displaying information about them.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
pvscan, vgscan, lvscan
Why it's wrong here
Scan for devices, not display info.
- ✗
pvck, vgck, lvck
Why it's wrong here
Check consistency, not display info.
- ✗
pvcreate, vgcreate, lvcreate
Why it's wrong here
Create objects, not display.
- ✓
pvdisplay, vgdisplay, lvdisplay
Why this is correct
pvdisplay, vgdisplay and lvdisplay report detailed per-object attributes for physical volumes, volume groups and logical volumes respectively, including sizes, UUIDs and allocation policy. They satisfy the requirement to inspect all three LVM layers, though the question expects only two commands.
- ✓
pvs, vgs, lvs
Why this is correct
pvs, vgs and lvs are the concise reporting variants, each printing one line per physical volume, volume group or logical volume. They expose the same LVM metadata as the verbose display commands but in compact, script-friendly columns.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This LFCS practice question is part of Courseiva's free Linux Foundation 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 LFCS exam.