Q: Which of the following backup types are most space-efficient?
or
Q: Which backup type uses the least amount of space among the following?
- Full backups
- Differential backups
- Incremental backups
Explanation: Any data that has been modified since the most recent backup, whether it is a full backup or an earlier incremental backup, is the only data that is included in incremental backups. As a consequence of this, they call for less amount of storage space than complete backups do. Nevertheless, the process of restoring the data can include more than one incremental backup, beginning with the most recent complete backup.
