Backup and Recovery for A+

This A+ topic package covers workstation-level backup and recovery knowledge at CompTIA A+ technician depth. Teach the named backup types (full, incremental, differential, synthetic full), recovery targets (in-place/overwrite vs alternative-location), backup testing frequency and purpose, rotation schemes including GFS, and location strategy including onsite/offsite and the 3-2-1 rule.

Start first lesson

5 lessons in this topic

Full, Incremental, Differential, and Synthetic Full Backups

Distinguish the named backup methods clearly instead of treating them as one generic backup category.

In-Place and Alternative-Location Recovery

Choose the right restore destination and distinguish overwrite recovery from alternative-location recovery.

Backup Testing and Verification Frequency

Treat testing frequency as a real operational requirement that validates the backup process.

Backup Rotation Schemes

Recognize named rotation schemes such as GFS and keep them separate from basic storage-location choices.

Onsite, Offsite, and 3-2-1 Strategy

Apply storage-location logic and the 3-2-1 rule to reduce avoidable backup exposure.

Common mistakes to avoid

- "Incremental" vs "differential": both capture changes but use different reference points. If asked which needs only two files to restore, choose differential (last full + differential).

- "Overwrite is always faster and therefore always better": speed matters, but if backups were not tested, overwriting can propagate issues.

- "Backups run successfully equals restorable": not always; successful backup jobs may still produce unreadable or corrupted backup sets. - Confusing frequency with bureaucracy: frequency should be risk-driven (data criticality, change rate), not arbitrary.

- Treating GFS as prescriptive counts rather than a pattern; counts should be adapted to organizational needs and storage capability.