GCFA Question #157: Real Exam Question with Answer & Explanation

The correct answer is D. Superblock. In Linux filesystems, the superblock is the critical data structure that stores metadata about the filesystem, including its size, block size, and status.

Question

What is the name of the group of blocks which contains information used by the operating system in Linux system?

Options

Alogblock
BSystemblock
CBootblock
DSuperblock

Explanation

In Linux filesystems, the superblock is the critical data structure that stores metadata about the filesystem, including its size, block size, and status.

Common mistakes.

A. Logblock is not a recognized Linux filesystem structure - system logs are managed by the kernel and daemons, not a special block type.
B. Systemblock is not a valid term in Linux filesystem architecture.
C. Bootblock refers to the area of disk used during the boot process (e.g., MBR), not a structure used by the OS to manage filesystem information.

Concept tested. Linux filesystem superblock structure and purpose

Reference. https://www.kernel.org/doc/html/latest/filesystems/ext4/globals.html

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