on premise vs cloud vs hybrid backup

1. My office has one server and one external drive. Is that enough?

No. That is a single point of failure. Add an offsite or cloud copy so one event cannot destroy both.

2. Is hybrid backup more expensive than just using the cloud?

Slightly, since you maintain two systems, but the faster local restores often save more in downtime than the extra cost.

3. How often should backup redundancy be tested?

Test rest at least once a month. An untested backup is a guess, not a plan.

4. Can I switch from local backup to cloud backup without downtime?

Yes, most providers can run both in parallel during a transition period before switching over fully.

5. What is the biggest mistake businesses make with backup storage options?

Assuming backup software running without errors means a restore will actually work. Only a real test confirms that.