System Design · Junior · Question 72 of 75
Why aren't database replicas a replacement for backups?
- ✓Correct answer: Replicas copy every change, including accidental deletions and corruption; backups let you restore an earlier state
- 2Replicas are slower
- 3Replicas don't store data
Explanation
Replication protects against server failure; backups (and tested restores) protect against mistakes and attacks.