AWS Certified Cloud Practitioner — Question 233

A company is using an Amazon RDS database to run reports that are input/output (I/O) intensive.

Which AWS service can be used to improve the database performance?

Answer options

Correct answer: C

Explanation

Amazon ElastiCache is the correct answer as it provides an in-memory caching solution that can significantly reduce the load on the RDS database by caching frequently accessed data, thus improving performance for I/O intensive operations. The other options, such as Amazon DynamoDB Accelerator (DAX) and Amazon Redshift, do not directly enhance RDS performance, and Amazon EMR is primarily used for big data processing rather than database optimization.