Medium1 markMultiple Choice
Domain 4.3: Database Cost OptimizationRDSReserved InstancesCost Optimization

AWS SAA-C03 · Question 63 · Domain 4.3: Database Cost Optimization

A company has been running a production Amazon RDS for MySQL database for two years. The database runs 24/7 and the compute requirements have not changed. The company plans to keep this architecture for at least another two years.<br/><br/>What is the MOST cost-effective way to pay for this database?

Answer options:

A.

Continue using On-Demand pricing.

B.

Purchase an RDS Reserved Instance.

C.

Use Compute Savings Plans.

D.

Migrate to Aurora Serverless.

How to approach this question

Identify the discount model for steady-state RDS workloads.

Full Answer

B.Purchase an RDS Reserved Instance.✓ Correct
Purchase an RDS Reserved Instance.
Amazon RDS Reserved Instances give you the option to reserve a DB instance for a one- or three-year term and in turn receive a significant discount compared to the On-Demand Instance pricing. Note that Compute Savings Plans do not cover RDS.

Common mistakes

Choosing Compute Savings Plans, mistakenly believing they cover RDS.

Practice the full AWS SAA-C03 Practice Exam 6

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