Question

A financial services company runs a DynamoDB table storing transaction records. Compliance requires that any point in the last 35 days must be recoverable to meet a tight RPO, AND that specific quarter-end table snapshots be retained immutably for 7 years for audit purposes. The DevOps team wants to automate both requirements with the least operational overhead while minimizing recovery time for the daily use case. Which approach best satisfies both requirements?

Accepted Answer

Enable DynamoDB Point-in-Time Recovery (PITR) for the 35-day continuous recovery window, and use AWS Backup with a scheduled backup plan and a cold-storage/retention lifecycle to capture and retain quarter-end backups for 7 years.

Answer

Enable PITR only, and rely on its continuous backups to satisfy both the 35-day and 7-year retention requirements.

Answer

Schedule a Lambda function via EventBridge to export the table to S3 daily and quarterly, applying S3 lifecycle rules to expire objects after 7 years.

Answer

Use AWS Backup with a continuous backup rule set to a 7-year retention period to cover both the 35-day RPO and the long-term audit retention.