SAA-C03 Q453 · Cost

Question

A company is planning to deploy a managed MySQL database solution for its nonproductionapplications. The company plans to run the system for several years on AWS. Which solution will meet these requirements MOST cost-effectively?

Accepted Answer

**Answer A: Amazon RDS for MySQL with Reserved Instance** satisfies every requirement:

1. **Managed MySQL database**: Amazon RDS for MySQL is a fully managed service — AWS handles patching, backups, failover, and maintenance. This directly meets the 'managed MySQL database solution' requirement.

2. **Nonproduction applications**: RDS for MySQL is appropriate for nonproduction workloads. It doesn't require the advanced features of Aurora (like multi-AZ replicas with fast failover), making it a right-sized choice.

3. **Several years on AWS**: This is the critical cost signal. When you know you'll run a workload for **multiple years**, Reserved Instances (RIs) provide **up to 60-72% savings** compared to On-Demand pricing. RDS Reserved Instances are available in 1-year or 3-year terms.

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