LFCS Question #815: Real Exam Question with Answer & Explanation

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 allows for flexible and dynamic management of storage, enabling administrators to resize, create, delete, and snapshot logical volumes.

Common mistakes.

• A. LVM is not used to create RAID arrays; RAID functionality is typically handled by mdadm for software RAID or by hardware RAID controllers, and RAID 9 is not a standard RAID level.
• C. LVM itself does not encrypt logical volumes; encryption is typically handled by separate technologies like LUKS (Linux Unified Key Setup) which can be applied to LVM logical volumes.

Concept tested. LVM core functionalities

Reference. https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/managing_storage_devices/what-is-lvm_managing-storage-devices

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