CompTIA Network+ (N10-007) — Question 51

Which of the following BEST describes the characteristics of a differential backup solution?

Answer options

• A. Backs up files with the creation or modified date as the current date.
• B. Backs up all files and sets the archive bit.
• C. Backs up files with a date earlier than today's date with a clear archive bit.
• D. Backs up files with the archive bit set but does not clear the bit.

Correct answer: A

Explanation

The correct answer is A because a differential backup captures all files that have been modified since the last full backup, using the current date for those files. Options B and C are incorrect as they describe features of full backups and incremental backups, respectively, while option D describes a characteristic of incremental backups, where the archive bit is not cleared.