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CompTIA Server+ SK0-005 · Domain 3: Security and disaster recovery

Backup types: full, incremental, differential, synthetic full, snapshot; backup media and rotation (grandfather-father-son), 3-2-1 rule

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Last reviewed September 25, 2026 · Leer en español

Backups are copies of data that let you recover from deletion, corruption, hardware failure, ransomware and disasters. Server+ tests the backup types, how they affect backup time and restore time, the media used and the rotation schemes that decide how long copies are kept.

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