AWS Certified Cloud Practitioner (CLF-C02) — Question 155

A company is running a critical workload on an Amazon RDS DB instance. The company needs the DB instance to be highly available with a recovery time of less than 5 minutes.

Which solution will meet these requirements?

Answer options

• A. Create a read replica of the DB instance.
• B. Create a template of the DB instance by using AWS CloudFormation.
• C. Take frequent snapshots of the DB instance. Store the snapshots in Amazon S3.
• D. Modify the DB instance to be a Multi-AZ deployment.

Correct answer: D

Explanation

The correct answer is D, as a Multi-AZ deployment ensures high availability and failover capabilities, allowing for recovery times under 5 minutes. Options A and C do not provide the necessary high availability; read replicas are primarily for scaling reads and not for failover. Option B does not address availability or recovery time, as it is only for infrastructure management.