Question

A financial services company runs its customer-facing transaction platform in a single cloud region. The business requires a recovery time objective (RTO) of near-zero and a recovery point objective (RPO) of near-zero, and it must survive the complete loss of an entire region without manual failover steps. The architecture team must redesign the platform to meet these resilience requirements while keeping data consistent across sites. Which design approach BEST satisfies these requirements?

Accepted Answer

Deploy an active-active configuration across two regions with synchronous data replication and global load balancing that automatically routes traffic away from a failed region

Answer

Deploy an active-passive warm standby in a second region with asynchronous replication and DNS-based failover triggered by an on-call engineer

Answer

Increase the number of availability zones within the single region and enable automated snapshots to object storage every 15 minutes

Answer

Implement a pilot light architecture in a second region with core databases replicated nightly and infrastructure provisioned on demand during a disaster