CompTIA Cloud+ (CV0-004)Cloud ArchitectureHard
An online gaming company needs to implement a highly available architecture for its game servers. The solution must ensure that if an entire data center (Availability Zone) goes offline, the game remains accessible to players with minimal disruption. The company wants to leverage multiple geographic regions to achieve this, preferring a setup where one region is fully active and serving traffic, while another region is on standby, ready to take over in case of a regional disaster. What type of disaster recovery strategy is being described?
- AWarm Standby
- BBackup and Restore
- CMulti-Region Active/Passive
- DPilot Light
Show answer & explanationAnswer & explanation
Correct answer: C. Multi-Region Active/Passive
Multi-Region Active/Passive (also known as active-passive or warm standby across regions) involves a fully operational primary region and a secondary region with scaled-down but ready-to-go resources, allowing for quick failover in a regional disaster.
Why the other options are wrong
- A. Warm Standby has a replica of the production environment running at a reduced capacity, but the scenario explicitly mentions 'multiple geographic regions' and 'one region is fully active and serving traffic, while another region is on standby', which points to a multi-region strategy.
- B. Backup and Restore has the highest RTO and RPO, involving restoring data and rebuilding infrastructure, not suitable for minimal disruption.
- D. Pilot Light maintains essential core services running in the DR region but requires significant time to scale up other resources, leading to more disruption.
Multi-Region Active/Passive DR
Multi-Region Active/Passive disaster recovery involves deploying a full production environment in one primary geographical region (active) and a scaled-down, but fully functional, replica in a secondary region (passive/standby). In a disaster, traffic is failed over to the secondary region, which then scales up to full capacity.
- One region active, serving traffic
- Another region passive/standby, scaled down but ready
- Provides recovery from regional outages
- Lower RTO than Pilot Light, higher than Active/Active
- Data replication is critical between regions
Memory trick: Active/Passive is like having a fully-stocked, ready-to-open duplicate store in another city.