A medium-sized enterprise has decided to implement a comprehensive disaster recovery plan. Given the critical nature of their transactional database that receives updates nearly every minute, which of the following backup frequencies would best balance the need for up-to-date data restoration capabilities with resource utilization?
Incremental backups every 2 hours with daily full backups
Full backups every 24 hours only
Differential backups every 4 hours without scheduled full backups
The correct answer is 'Incremental backups every 2 hours with daily full backups'. This approach efficiently balances the need to maintain recent data save points to minimize loss in the event of a system failure while utilizing resources effectively. Incremental backups save changes since the last full or incremental backup, reducing the volume of data that needs to be copied and the time required for each subsequent backup. Daily full backups ensure that there is always a recent complete copy of data to restore from, while the frequent incremental backups capture the ongoing changes.
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