CISA aspirants should understand various backup schemes as follow:
Full Backup- Every time data backup is taken of full database irrespective of earlier backup.
Differential Backup-Backup is taken only of data changed/modified since last full backup (last back to be full back-up only).
Incremental Backup-Backup is taken only of data changed/modified since last backup (last backup can be either full backup or incremental backup).
Full Backup- Every time data backup is taken of full database irrespective of earlier backup.
Differential Backup-Backup is taken only of data changed/modified since last full backup (last back to be full back-up only).
Incremental Backup-Backup is taken only of data changed/modified since last backup (last backup can be either full backup or incremental backup).
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