When creating a backup plan, which scheme would best balance recovery speed and storage space?

Choosing a backup scheme that balances recovery speed and storage space can be challenging, but the combination of full backups weekly and differential backups nightly achieves this balance effectively.

In this approach, a full backup is done weekly, which means that one complete copy of the data is stored that can be used for a quick restoration process. This is important because restoring from a full backup is typically the fastest method to complete a recovery, as all data is contained in one backup set.

On the other hand, differential backups are performed nightly. This means that each night only the data that has changed since the last full backup is backed up. As a result, differential backups take less time to complete and require less storage space compared to full backups. Although differential backups will grow in size until the next full backup, they remain smaller than complete full backups and allow for efficient recovery. To restore, you would need to use the last full backup and the latest differential backup, making the recovery process quicker than using multiple incremental backups.

This combination provides the advantage of relatively quick recovery times while still managing storage effectively. In contrast, other backup strategies either result in longer recovery times or require more storage space. For example, daily incremental backups would require several backup sets to be restored for a