AWS Certified Solutions Architect – Associate (SAA-C03) — Question 512

An application uses an Amazon RDS MySQL DB instance. The RDS database is becoming low on disk space. A solutions architect wants to increase the disk space without downtime.

Which solution meets these requirements with the LEAST amount of effort?

Answer options

• A. Enable storage autoscaling in RDS
• B. Increase the RDS database instance size
• C. Change the RDS database instance storage type to Provisioned IOPS
• D. Back up the RDS database, increase the storage capacity, restore the database, and stop the previous instance

Correct answer: A

Explanation

Enabling storage autoscaling in Amazon RDS allows the database to automatically increase its storage capacity as data grows, requiring zero downtime and minimal operational effort. Upgrading the instance size or changing to Provisioned IOPS does not directly address the storage volume capacity limit. Recreating the database from a backup involves significant manual effort and results in unnecessary application downtime.