LX0-103 Question #2: Real Exam Question with Answer & Explanation

The correct answer is B: To dynamically change the size of logical volumes.. LVM supports dynamic resizing of logical volumes, snapshot creation, and dynamic creation or deletion of logical volumes. It does not natively provide RAID 9 (which does not exist) or built-in encryption.

Devices, Linux Filesystems, Filesystem Hierarchy Standard

Question

What can the Logical Volume Manager (LVM) be used for? (Choose THREE correct answers.)

Options

ATo create RAID 9 arrays.
BTo dynamically change the size of logical volumes.
CTo encrypt logical volumes.
DTo create snapshots.
ETo dynamically create or delete logical volumes.

Explanation

LVM supports dynamic resizing of logical volumes, snapshot creation, and dynamic creation or deletion of logical volumes. It does not natively provide RAID 9 (which does not exist) or built-in encryption.

Common mistakes.

A. RAID 9 is not a defined RAID level - it does not exist, so LVM cannot create it.
C. LVM does not natively encrypt logical volumes; encryption is handled by a separate layer such as LUKS using dm-crypt.

Concept tested. LVM capabilities - resize, snapshots, dynamic volumes

Reference. https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/html/configuring_and_managing_logical_volumes/index

Topics

#LVM#logical volumes#snapshots#volume management

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