Which technique will satisfy these criteria with the LEAST amount of operational overhead?

On a single Amazon RDS DB instance, a business hosts a MySQL database for its ecommerce application. Automatically saving application purchases to the database results in high-volume writes. Employees routinely create purchase reports for the company. The organization wants to boost database performance and minimize downtime associated with upgrade patching.

Which technique will satisfy these criteria with the LEAST amount of operational overhead?
A . Enable a Multi-AZ deployment of the RDS for MySQL DB instance, and enable Memcached in the MySQL option group.
B. Enable a Multi-AZ deployment of the RDS for MySQL DB instance, and set up replication to a MySQL DB instance running on Amazon EC2.
C. Enable a Multi-AZ deployment of the RDS for MySQL DB instance, and add a read replica.
D. Add a read replica and promote it to an Amazon Aurora MySQL DB cluster master.
Then enable Amazon Aurora Serverless.

View Answer

Answer: C