Q59 — AWS SAA-C03 Ch.4

Question 59 of 105 | ← Chapter 4

Q254. A solutions architect must create a disaster recovery (DR) plan for a high-volume software as a service (SaaS) platform. All data for the platform is stored in an Amazon Aurora MySQL DB cluster.The DR plan must replicate data to a secondary AWS Region.Which solution will meet these requirements MOST cost_effectively?

• A. Use MySQL binary log replication to an Aurora cluster in the secondary Region. Provision one DB instance for the Aurora cluster in the secondary Region
• B. Set up an Aurora global database for the DB cluster. When setup is complete, remove the DB instance from the secondary Region
• C. Use AWS Database Migration Service (AWS DMS) to continuously replicate data to an Aurora cluster in the secondary Region. Remove the DB instance from the secondary Region
• D. Set up an Aurora global database for the DB cluster. Specify a minimum of one DB instance in the secondary Region ✓

Correct Answer: D. Set up an Aurora global database for the DB cluster. Specify a minimum of one DB instance in the secondary Region

Explanation

D provides automatic replication to a secondary Region through the Aurora global database feature. This feature provides automatic replication of data across AWS Regions, with the ability to control and configure the replication process. By specifying a minimum of one DB instance in the secondary Region, you can ensure that your secondary database is always available and up-to-date, allowing for quick failover in the event of a disaster.An Aurora DB cluster can contain up to 15 Aurora Replicas. The Aurora Replicas can be distributed across the Availability Zones that a DB cluster spans WITHIN an AWS Region. https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/Aurora.Replication.htm