A small business wants to implement a backup strategy that involves storing backups both on-site and off-site. Which backup rotation scheme is most appropriate for this scenario?
Grandfather-Father-Son (GFS)
Incremental backup
Full backup only
3-2-1 backup rule
The 3-2-1 backup rule is the most appropriate backup rotation scheme for this scenario. This rule states that you should keep at least three copies of your data, store two backup copies on different storage media, and keep one copy off-site for disaster recovery. This strategy provides robust protection against various data loss scenarios, including hardware failures, accidental deletions, and natural disasters. It combines the benefits of on-site backups for quick recovery with off-site storage for protection against site-wide disasters. The Grandfather-Father-Son (GFS) scheme, while useful for long-term retention, doesn't specifically address the on-site and off-site requirements mentioned in the question. Full, incremental, and differential backups are types of backups rather than rotation schemes, and don't address the storage location requirements.
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