CompTIA Server+

Answer - B - The differential backup method restores the system faster, but takes more time and space to perform the actual backups.

Key Takeaway: Differential backup contains all files that have changed since the last full backup. The advantage of a differential backup is that it shortens restore time compared to a full backup or an incremental backup. However, if you perform the differential backup too many times, the size of the differential backup might grow larger than the baseline full backup.