AWS Certified Solutions Architect – Associate (SAA-C03) — Question 784

A company is planning to deploy its application on an Amazon Aurora PostgreSQL Serverless v2 cluster. The application will receive large amounts of traffic. The company wants to optimize the storage performance of the cluster as the load on the application increases.

Which solution will meet these requirements MOST cost-effectively?

Answer options

• A. Configure the cluster to use the Aurora Standard storage configuration.
• B. Configure the cluster storage type as Provisioned IOPS.
• C. Configure the cluster storage type as General Purpose.
• D. Configure the cluster to use the Aurora I/O-Optimized storage configuration.

Correct answer: D

Explanation

For I/O-intensive workloads, the Aurora I/O-Optimized storage configuration is the most cost-effective choice because it offers predictable pricing by eliminating individual I/O charges. Aurora Standard charges per million I/Os, which can become extremely expensive under heavy traffic. Other storage types like Provisioned IOPS and General Purpose are not standard configurable storage options for Amazon Aurora clusters in this manner.