GCFA Question #256: Real Exam Question with Answer & Explanation

The correct answer is B. mkfs.ext3 C. mke2fs -j. An ext3 filesystem can be created either directly with mkfs.ext3 or with mke2fs -j, where the -j flag adds a journal to an ext2 filesystem to produce ext3.

Question

Which of the following commands can you use to create an ext3 file system? Each correct answer represents a complete solution. Choose two.

Options

Amke2fs
Bmkfs.ext3
Cmke2fs -j
Dmkfs.ext2

Explanation

An ext3 filesystem can be created either directly with mkfs.ext3 or with mke2fs -j, where the -j flag adds a journal to an ext2 filesystem to produce ext3.

Common mistakes.

A. Running mke2fs without the -j flag creates an ext2 filesystem, not ext3, because no journal is added by default.
D. The mkfs.ext2 command explicitly creates an ext2 filesystem without a journal, which is a different and older filesystem type than ext3.

Concept tested. Linux ext3 filesystem creation commands

Reference. https://man7.org/linux/man-pages/man8/mke2fs.8.html

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