Q31 — AWS SAA-C03 Ch.13

Question 31 of 100 | ← Chapter 13

Q931. A company runs database workloads on AWS that are the backend for the company's customer portals. The company runs a Multi-AZ database cluster on Amazon RDS for PostgreSQL.The company needs to implement a 30-day backup retention policy.The company currently has both automated RDS backups and manual RDS backups.The company wants to maintain both types of existing RDS backups that are less than 30 days old.Which solution will meet these requirements MOST cost-effectively?

Correct Answer: C. Configure the RDS backup retention policy to 30 days for automated backups. Manually delete manual backups that are older than 30 days

Explanation

The solution that will meet the requirements most cost-effectively is:C. Configure the RDS backup retention policy to 30 days for automated backups. Manually delete manual backups that are older than 30 days.This solution meets the requirement of maintaining both types of RDS backups (automated and manual) that are less than 30 days old, while minimizing costs. By configuring the RDS backup retention policy to 30 days for automated backups, the company ensures that automated backups are automatically deleted after 30 days, reducing storage costs. For manual backups, the company can manually delete backups that are older than 30 days, also helping to reduce storage costs.Option A suggests using AWS Backup to configure the RDS backup retention policy, but AWS Backup is typically used for more complex backup strategies involving multiple resources across different AWS services. It is not necessary for this specific scenario, and may introduce additional complexity and cost.Option B and D both suggest disabling RDS automated backups, which is not recommended as automated backups provide an additional layer of protection and recovery options in case of unexpected data loss or corruption.Option D also suggests using AWS CloudFormation to automatically delete automated and manual backups that are older than 30 days. However, CloudFormation is primarily used for infrastructure provisioning and management, and not for managing RDS backups. Moreover, automatically deleting backups with CloudFormation would require setting up complex IAM policies and Lambda functions, which may introduce additional operational overhead and complexity.