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

A.
Full backup method

B.
Incremental backup method

C.
Fast backup method

D.
Differential backup method

Explanation:
The Differential backup method backs up the files that have been modified since the last full backup. The
differential process does not change the archive bit value.
Incorrect Answers:
A: During a full backup all data are backed up and saved to some type of storage media, and the archive bit is
cleared.
B: The Incremental backup method backs up all the files that have changed since the last full or incremental
backup and sets the archive bit to 0.
C: There is no backup method named fast backup method.

Harris, Shon, All In One CISSP Exam Guide, 6th Edition, McGraw-Hill, New York, 2013, p. 936