An IT administrator is tasked with implementing a backup strategy that ensures data can be recovered from various points in time. The policy requires retaining daily backups for the past week, a weekly backup for each of the last four weeks, and a monthly backup for the past year. Which of the following backup rotation schemes BEST describes this model?
The correct answer is the Grandfather-father-son (GFS) scheme. This method is a hierarchical strategy that involves three generations of backups: daily (Son), weekly (Father), and monthly (Grandfather). This perfectly matches the requirements of the described policy. Incremental and differential backups are types of backups that describe what data is backed up, not the schedule or rotation of the media itself. A full backup is a type of backup, not a rotation scheme.
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What does GFS stand for in backup rotation schemes?
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Why is it important to maintain multiple generations of backups?
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How does the GFS method improve the backup process compared to simpler methods?