A rapidly growing ecommerce company runs workloads in a single AWS Region and must create a disaster recovery strategy that includes a different AWS Region. The company wants the database in the DR Region to be up to date with the least possible latency. The remaining infrastructure in the DR Region should run at reduced capacity and be able to scale up if needed. Which solution provides the LOWEST recovery time objective (RTO)?

A warm standby deployment is ideal for achieving a low RTO because it maintains a scaled-down but functional version of the application in the DR region, ready to scale up quickly. An Amazon Aurora global database provides the lowest latency replication across regions, ensuring the DR database is highly up-to-date. This combination directly addresses the requirements for low latency and a low RTO. Pilot light deployments involve starting most resources from scratch during a disaster, leading to a higher RTO than warm standby. Amazon RDS Multi-AZ DB instances provide high availability within a single region but do not offer cross-region disaster recovery with the same low latency replication as Aurora Global Database.