Question

A financial services company runs its core banking application on Compute Engine in the us-central1 region. Regulators require the ability to recover from a full regional outage with a Recovery Time Objective (RTO) of 30 minutes and a Recovery Point Objective (RPO) of 5 minutes. The company wants to minimize ongoing costs while still meeting these targets. Which disaster recovery strategy should the architect design?

Accepted Answer

Implement a warm standby in us-east1 with a scaled-down set of instances kept running, combined with asynchronous database replication that meets the 5-minute RPO, scaling up on failover

Answer

Deploy a full active-active configuration with equal capacity in us-central1 and us-east1, load-balanced by a global HTTPS load balancer

Answer

Take daily snapshots of persistent disks and store them in a multi-region bucket, restoring instances in us-east1 only when an outage occurs

Answer

Use a cold standby with pre-built instance templates in us-east1 and rely on Cloud SQL automated backups restored on demand during a disaster