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CompTIA A+ Core 2 220-1202 · Domain 4: Operational procedures

Backup and recovery: full, incremental, differential and synthetic backups; testing restores; on-site vs off-site; 3-2-1 rule; grandfather-father-son rotation

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Last reviewed September 30, 2026 · Leer en español

Backups are the last line of defense against hardware failure, accidental deletion, ransomware and disasters. A backup strategy decides what to back up, how often, where to keep copies, how long to keep them and how quickly you can restore. The exam focuses on three areas: the backup types and what each needs for a restore, where copies are stored, and rotation schemes that balance history against media and storage use.

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