Google Cloud Digital LeaderGeneral knowledge of Google CloudMedium
A company is planning to deploy a new application that needs to be highly available and resilient to regional outages. They want to ensure their data remains accessible even if an entire Google Cloud region becomes unavailable. Which Google Cloud global infrastructure concept is most relevant for achieving this goal?
- ADeploying resources across multiple zones within a single region.
- BReplicating data and services across multiple distinct regions.
- CUtilizing a global external IP address for load balancing.
- DImplementing automatic scaling within a single zone.
Show answer & explanationAnswer & explanation
Correct answer: B. Replicating data and services across multiple distinct regions.
To protect against an entire regional outage, resources and data must be replicated across multiple, geographically distinct Google Cloud regions. Deploying across zones only protects against zone-level failures within a region.
Why the other options are wrong
- A. Deploying across multiple zones within a single region protects against zone failures, but not against a full regional outage.
- C. A global external IP address is for routing traffic, not for ensuring data availability during a regional outage.
- D. Automatic scaling within a single zone helps handle traffic spikes but does not provide resilience against zone or regional outages.
Google Cloud Regions for Disaster Recovery
Google Cloud Regions are independent geographic areas that contain multiple zones. Deploying across multiple regions provides the highest level of availability and disaster recovery against widespread regional failures.
- Regions are geographically isolated from each other.
- Each region has multiple zones for high availability within the region.
- Cross-region deployment protects against regional outages.
- Ensures business continuity for critical applications.
Memory trick: To survive a region's 'R'uin, you need 'R'eplication in another 'R'egion.