Which backup method only copies files that have been recently added or changed and also leaves the archive bit unchanged?

The correct answer is D. Differential backup method. A differential backup copies all files that have changed since the last full backup and does NOT reset (clear) the archive bit. This means each differential backup grows larger over time until the next full backup. An incremental backup (B) also copies only changed files, but it

Submitted by takeshi77· Apr 18, 2026Security Operations and Administration

Question

Options

AFull backup method
BIncremental backup method
CFast backup method
DDifferential backup method

How the community answered

(45 responses)

A
7% (3)
B
2% (1)
C
2% (1)
D
89% (40)

Explanation

A differential backup copies all files that have changed since the last full backup and does NOT reset (clear) the archive bit. This means each differential backup grows larger over time until the next full backup. An incremental backup (B) also copies only changed files, but it DOES reset the archive bit after each run, keeping each backup smaller. A full backup (A) copies everything and resets the archive bit. 'Fast backup' (C) is not a standard backup type.

Topics

#Backup methods#Differential backup#Archive bit#Data availability

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