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CompTIA Server+ · CompTIA
Select 2 answers.
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A. Differential Backs up all changes since the last full backup. Restore requires last full backup + latest differential. ✅ Faster restore than incremental and uses less media than multiple full backups. B. Synthetic full Creates a full backup by combining previous full and incremental backups without re-reading all data from the source. ✅ Saves media and speeds up restore because it behaves like a full backup.
Synthetic Full A synthetic backup is a full backup performed by synthesizing (combining) the data from the previous full backup (either a regular full backup for the first backup, or the previous synthetic full backup) and the periodic incremental backups. The incremental backups are the only files that need to be transferred during replication, greatly reducing the bandwidth needed for off-site replication.
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