Question

A financial services company runs a customer-facing web application in us-east-1. The business requires a disaster recovery strategy with a near-zero RTO and RPO so that a full Regional outage causes almost no disruption. The application tier is stateless and already deployed behind an Application Load Balancer and Auto Scaling group. The team wants both Regions to actively serve production traffic and to keep the database synchronized bidirectionally with minimal replication lag. Which approach BEST meets these requirements?

Accepted Answer

Deploy the full application stack in a second Region (us-west-2), use a DynamoDB global table for the data tier, and configure Route 53 latency-based routing with health checks to send users to both Regions simultaneously.

Answer

Implement a pilot light strategy in us-west-2 with core infrastructure switched off, and use Route 53 failover routing to activate it during a disaster.

Answer

Use AWS Backup to copy DynamoDB and EBS backups to us-west-2 on an hourly schedule, and restore the environment manually if us-east-1 fails.

Answer

Deploy a warm standby in us-west-2 running at reduced capacity with a DynamoDB read replica, and scale it up using Route 53 failover routing after a Regional outage.