Q: Which type of backup only saves the parts of data that have changed within files since the last backup took place?
or
Q: Which kind of backup preserves data only when it has changed within files after the last backup?
- Complete backup
- Incremental backup
- Differential backups
- RAID array
Explanation: Incremental backups only capture the changes made since the last backup (whether full or incremental), which helps save storage space and reduce backup times. Differential backups capture all changes made since the last full backup. Complete backups save all data in its entirety each time they are performed. RAID arrays are not a backup type but a method for data redundancy and performance enhancement.
