DJames617 Service Comparison
Backup vs Replication
Backups help restore. Replication keeps another copy synchronized for availability or DR.
What They Have in Common
Each option can solve part of the scenario. The exam expects you to choose the one that satisfies the stated constraints with the right operational burden, security boundary, availability model, and cost behavior.
Key Differences
| Option | Primary model | Best use | Security | Availability | Operations and cost |
|---|---|---|---|---|---|
| Backup | Point-in-time recovery | Recover deletion, corruption, ransomware, audit retention | Vault policies, encryption, retention, restore permissions | Restore time can be significant; protects recovery options | Storage and restore cost; schedule and test restores |
| Replication | Ongoing copy | Lower RPO, regional resilience, read locality | Encryption and destination access controls | Supports faster failover and regional resilience | Continuous capacity/transfer cost; can replicate bad writes |
Typical Exam Clues
Practice After Studying
Return to the certification guide that includes this comparison and launch domain training from there.