AWS Certified Solutions Architect – Associate (SAA-C03) — Question 94

A company needs to keep user transaction data in an Amazon DynamoDB table. The company must retain the data for 7 years.
What is the MOST operationally efficient solution that meets these requirements?

Answer options

• A. Use DynamoDB point-in-time recovery to back up the table continuously.
• B. Use AWS Backup to create backup schedules and retention policies for the table.
• C. Create an on-demand backup of the table by using the DynamoDB console. Store the backup in an Amazon S3 bucket. Set an S3 Lifecycle configuration for the S3 bucket.
• D. Create an Amazon EventBridge (Amazon CloudWatch Events) rule to invoke an AWS Lambda function. Configure the Lambda function to back up the table and to store the backup in an Amazon S3 bucket. Set an S3 Lifecycle configuration for the S3 bucket.

Correct answer: B

Explanation

The correct answer is B because AWS Backup provides a centralized way to automate the backup processes and manage retention policies, ensuring data is kept for the required period efficiently. Option A is less efficient as it continuously backs up data but lacks specific retention management. Option C requires manual intervention for backups, and option D involves more complexity with Lambda functions and event triggers, making it less operationally efficient.