AWS Certified Database – Specialty — Question 208

A company has a 12-node Amazon Aurora MySQL DB cluster. The company wants to use three specific Aurora Replicas to handle the workload from one of its read-only applications.

Which solution will meet this requirement with the LEAST operational overhead?

Answer options

• A. Use CNAMEs to set up DNS aliases for the three Aurora Replicas.
• B. Configure an Aurora custom endpoint for the three Aurora Replicas.
• C. Use the cluster reader endpoint. Configure the failover priority of the three Aurora Replicas.
• D. Use the specific instance endpoints for each of the three Aurora Replicas.

Correct answer: B

Explanation

The correct answer is B because configuring a custom endpoint allows you to easily manage and direct traffic to the three specific Aurora Replicas without additional complexity. Options A and D involve more manual management and do not provide the same level of flexibility, while option C, while useful, still requires additional configuration for failover priorities which adds to the operational overhead.