LFCA Question #53: Real Exam Question with Answer & Explanation

Question

When using rsync to mirror a local directory to a remote server, what is the significance of the -- delete option?

Options

• AFiles absent from the remote directory will be restored from the local directory.
• BFiles present in the local directory, but not present in the remote directory, will be deleted.
• CFiles absent from the local directory will be restored from the remote directory.
• DFiles present in the remote directory, but not present in the local directory, will be deleted.

Explanation

This question asks about the specific function of the --delete option when using rsync for mirroring directories.

Common mistakes.

• A. The --delete option does not restore files; it removes them from the destination if they are not in the source.
• B. This description is inverted; rsync with --delete deletes files on the destination that are not in the source.
• C. This describes a restoration scenario from remote to local, which is the opposite of mirroring local to remote and not what --delete does.

Concept tested. rsync utility options (mirroring, --delete)

Reference. https://man7.org/linux/man-pages/man1/rsync.1.html

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