AWS Certified Solutions Architect – Associate (SAA-C03) — Question 82

A company runs a shopping application that uses Amazon DynamoDB to store customer information. In case of data corruption, a solutions architect needs to design a solution that meets a recovery point objective (RPO) of 15 minutes and a recovery time objective (RTO) of 1 hour.
What should the solutions architect recommend to meet these requirements?

Answer options

• A. Configure DynamoDB global tables. For RPO recovery, point the application to a different AWS Region.
• B. Configure DynamoDB point-in-time recovery. For RPO recovery, restore to the desired point in time.
• C. Export the DynamoDB data to Amazon S3 Glacier on a daily basis. For RPO recovery, import the data from S3 Glacier to DynamoDB.
• D. Schedule Amazon Elastic Block Store (Amazon EBS) snapshots for the DynamoDB table every 15 minutes. For RPO recovery, restore the DynamoDB table by using the EBS snapshot.

Correct answer: B

Explanation

The correct answer is B because DynamoDB point-in-time recovery allows for restoring the table to any point within the last 35 days, thus meeting the RPO of 15 minutes. Options A, C, and D do not provide the same level of granularity or speed in recovery, making them less suitable for the specified RPO and RTO requirements.