CompTIA Security+ (SY0-601) — Question 163

A company wants to modify its current backup strategy to minimize the number of backups that would need to be restored in case of data loss. Which of the following would be the BEST backup strategy to implement?

Answer options

• A. Incremental backups followed by differential backups
• B. Full backups followed by incremental backups
• C. Delta backups followed by differential backups
• D. Incremental backups followed by delta backups
• E. Full backups followed by differential backups

Correct answer: E

Explanation

The best strategy is E, as full backups provide a complete snapshot of data, and differential backups only save changes since the last full backup, minimizing the number of restoration points. Options A and D involve incremental backups, which require restoring all previous incremental backups along with the last full backup, making recovery more complex. Option C introduces delta backups, which are less common and may not efficiently reduce restoration times compared to the full and differential approach.