AWS Certified Database – Specialty — Question 280

A manufacturing company stores its inventory details in an Amazon DynamoDB table in the us-east-2 Region. According to new compliance and regulatory policies, the company is required to back up all of its tables nightly and store these backups in the us-west-2 Region for disaster recovery for 1 year.

Answer options

• A. Convert the existing DynamoDB table into a global table and create a global table replica in the us-west-2 Region.
• B. Use AWS Backup to create a backup plan. Configure cross-Region replication in the plan and assign the DynamoDB table to this plan.
• C. Create an on-demand backup of the DynamoDB table and restore this backup in the us-west-2 Region.
• D. Enable Amazon S3 Cross-Region Replication (CRR) on the S3 bucket where DynamoDB on-demand backups are stored.

Correct answer: D

Explanation

Exporting DynamoDB backups to an Amazon S3 bucket and enabling S3 Cross-Region Replication (CRR) to us-west-2 provides a highly durable and compliant disaster recovery solution. This method allows the company to utilize S3 Lifecycle policies to automatically transition and delete the backups after the required 1-year retention period, minimizing storage costs. Other options like global tables do not serve as a point-in-time backup solution, and restoring backups directly does not manage the 1-year retention requirement automatically.