A mid-sized company has implemented a new data backup policy that employs several methods for protecting user data on its Windows workstations. The IT team wants to adopt a differential backup strategy for daily protection. Which statement best describes how a differential backup operates?
It copies only the files that are open at specified intervals.
It captures changes made since the most recent full backup.
It requires restoring every previous backup in sequence to recover data.
It captures changes made since the most recent backup of any type.
A differential backup captures all data that has changed since the last full backup. Because each differential set is cumulative, restoration normally requires only two files: the most recent full backup and the latest differential. The other statements describe incremental backups, scheduled file snapshots, or an unnecessarily lengthy restore process, so they are incorrect.
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What is the difference between a differential backup and an incremental backup?
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CompTIA A+ 220-1102 (V14)
Operational Procedures
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