A company requires disaster recovery and failover for its application (which uses a MySQL database and EC2 instances) with an RPO ≤ 2 hours and an RTO ≤ 10 minutes at all times. Which combination of deployments will satisfy these objectives? (Choose two.)
Choose an answer
Tap an option to check your answer.
Correct answer: Create an Amazon Aurora global database spanning two AWS Regions as the data store. If a Region fails, promote the secondary Region to primary and update the application to use the Aurora cluster endpoint in the promoted Region., Deploy the application in two AWS Regions and use Amazon Route 53 failover routing that points to Application Load Balancers (ALBs) in both Regions, with health checks and Auto Scaling groups in each Region..
Why this is the answer
The combination of an Amazon Aurora global database and Amazon Route 53 failover routing meets the stringent RPO and RTO requirements. An Aurora global database provides cross-Region replication with typical RPO in seconds, significantly better than the 2-hour requirement. Promoting a secondary Region to primary is a fast operation, ensuring the RTO of 10 minutes is met for the database. For the application tier, deploying in two Regions with Route 53 failover routing and health checks allows for automatic redirection of traffic to the healthy Region if one fails, ensuring the application remains available within the 10-minute RTO. Auto Scaling groups provide elasticity and resilience within each Region. Creating an Amazon Aurora Single-AZ cluster across multiple Regions is not a valid Aurora deployment model. Using a Network Load Balancer to distribute database traffic across Aurora clusters in different Regions is not the recommended or most efficient way to handle cross-Region Aurora failover; Aurora global database is designed for this. AWS Global Accelerator with a single endpoint group for two ALBs in different Regions is not suitable for failover, as it would distribute traffic to both endpoints, not fail over between them.
Pass your exam — without the endless answer hunt
Get every verified question and explanation for this exam in one place, and save hours of prep. 1,000+ certifications · 20+ languages · free to start.
Pass your exam faster → No card needed