CompTIA Cloud Essentials+ (CLO-002)Management and Technical OperationsHard
A major cloud provider is experiencing a widespread outage affecting multiple services within one of its regions. A company hosting its critical application in that region needs to quickly switch over to a pre-configured, identical environment in another region. What type of disaster recovery strategy is being leveraged in this scenario?
- AWarm Standby
- BCold Standby
- CPilot Light
- DBackup and Restore
Show answer & explanationAnswer & explanation
Correct answer: A. Warm Standby
Warm Standby involves maintaining a scaled-down but fully functional duplicate of your production environment in a separate region. In case of a disaster, this environment can be quickly scaled up and traffic redirected, providing a faster recovery than Pilot Light or Backup and Restore.
Why the other options are wrong
- B. Cold Standby means infrastructure is not running and needs to be provisioned from scratch, leading to a much longer recovery time.
- C. Pilot Light involves only core services running, requiring more effort and time to fully deploy and scale the application.
- D. Backup and Restore has the longest recovery time (RTO) as infrastructure needs to be provisioned and data restored.
Warm Standby DR
A disaster recovery strategy where a scaled-down but fully functional duplicate of the production environment is maintained in a separate region, ready to be scaled up and receive traffic during a disaster.
- Lower RTO than Pilot Light or Backup & Restore.
- Higher cost than Pilot Light but lower than Active-Active.
- Requires ongoing synchronization of data.
- Suitable for applications needing faster recovery than basic backups.
Memory trick: Warm Standby is Ready to Get Hot.