Question

A company runs a batch analytics application in a single AWS Region. The workload is only used for monthly reporting and is not customer-facing. Leadership has approved a disaster recovery plan with an RTO of 24 hours and an RPO of 24 hours, and they want the lowest possible ongoing cost. The application data is stored in Amazon S3 and an Amazon RDS database. Which DR strategy best meets these requirements?

Accepted Answer

Backup and restore — replicate S3 data and copy RDS snapshots to a second Region, and provision infrastructure only when a disaster is declared

Answer

Pilot light — keep a minimal core of infrastructure (such as a stopped RDS instance) always running in the second Region

Answer

Warm standby — run a scaled-down but fully functional copy of the environment in the second Region at all times

Answer

Multi-site active/active — run full production capacity in two Regions simultaneously with Route 53 routing traffic to both