Identifying an LVM physical volume | LinuC Level 1 101 Exam original practice question

1.05.2Basic

Use /dev/sdb1 as the lowest LVM layer that supplies storage to an upper pool.

Which layer is this?

Hint 1: Focus on the requirement

Map the LVM layers from the physical input device to the pool and then to the usable logical device.

Hint 2: Key terms

Review the short partitioning and LVM definitions before comparing the choices.

PV: A physical volume that supplies capacity to LVM.
VG: A volume group that pools one or more PVs.
LV: A logical volume allocated from a VG for use by a filesystem or application.
LVM hierarchy: The PV-to-VG-to-LV abstraction used to manage storage.

Detailed explanation

Incorrect論理ボリューム（LV）

Incorrect. An LV is allocated from a VG and is used as a virtual block device.

Correct物理ボリューム（PV）

Correct. /dev/sdb1 is being used as an LVM physical volume.

Incorrectボリュームグループ（VG）

Incorrect. A VG aggregates multiple PVs into a pool.

Incorrectスナップショット

Incorrect. A snapshot is a derived LV representing a point in time.

An example you can run in a temporary verification environment.

pvs --help 2>&1 | sed -n '1,12p'

physical volume情報を表示するpvsの使用法

Environment: LVM2 / ヘルプ表示のみ
Use read-only inspection or a disposable disk when learning storage commands.
Partition and LVM writes can destroy data; verify the target before running them.

Foundation review

A device becomes a PV before its space can be pooled in a VG and assigned to an LV.

Confirm that the device is unused before writing an LVM label.

Question IDKL-101-569

EnvironmentLVM2 / ヘルプ表示のみ

Last technical review2026-08-13

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