CompTIA A+ Core 2 (220-1102) — Question 122

A technician is upgrading the backup system for documents at a high-volume law firm. The current backup system can retain no more than three versions of full backups before failing. The law firm is not concerned about restore times but asks the technician to retain more versions when possible. Which of the following backup methods should the technician MOST likely implement?

Answer options

• A. Full
• B. Mirror
• C. Incremental
• D. Differential

Correct answer: C

Explanation

The Incremental backup method is the best choice because it saves only the changes made since the last backup, allowing for more versions to be retained without using excessive storage space. Full and Mirror backups would quickly fill the available storage, and Differential backups, while retaining more versions than Full, still wouldn't be as efficient as Incremental in this scenario.