CompTIA Security+ (SY0-601) — Question 822

A company has limited storage space available and an online presence that cannot be down for more than four hours. Which of the following backup methodologies should the company implement to allow for the FASTEST database restore time in the event of a failure, while being mindful of the limited available storage space?

Answer options

• A. Implement full tape backups every Sunday at 8:00 p.m. and perform nightly tape rotations.
• B. Implement differential backups every Sunday at 8:00 p.m. and nightly incremental backups at 8:00 p.m.
• C. Implement nightly full backups every Sunday at 8:00 p.m.
• D. Implement full backups every Sunday at 8:00 p.m. and nightly differential backups at 8:00 p.m.

Correct answer: D

Explanation

The correct answer, D, provides the quickest restore time as it combines a full backup with nightly differential backups, allowing for a faster recovery process since only the most recent full and differential backups are needed. Option A relies on tape backups which are slower to restore, B uses incremental backups that can take longer to recover due to multiple backup sets needing to be restored, and C does not account for the need for ongoing backups throughout the week, leading to longer recovery times.