AWS Certified Database – Specialty — Question 211

A company is using Amazon Aurora with Aurora Replicas. A database specialist needs to split up two read-only applications so that each application connects to a different set of DB instances. The database specialist wants to implement load balancing and high availability for the read-only applications.

Which solution meets these requirements?

Answer options

• A. Use a different instance endpoint for each application.
• B. Use the reader endpoint for both applications.
• C. Use the reader endpoint for one application and an instance endpoint for the other application.
• D. Use different custom endpoints for each application.

Correct answer: D

Explanation

The correct answer is D because using different custom endpoints allows for better load balancing and high availability tailored to each application's needs. Option A does not provide a method for load balancing across multiple instances effectively. Option B fails to separate the applications adequately, while option C combines the two approaches, thereby not fully optimizing for high availability.