AWS Certified Database – Specialty – Question140

A database specialist must create nightly backups of an Amazon DynamoDB table in a mission-critical workload as part of a disaster recovery strategy.
Which backup methodology should the database specialist use to MINIMIZE management overhead?

A. Install the AWS CLI on an Amazon EC2 instance. Write a CLI command that creates a backup of the DynamoDB table. Create a scheduled job or task that runs the command on a nightly basis.
B. Create an AWS Lambda function that creates a backup of the DynamoDB table. Create an Amazon CloudWatch Events rule that runs the Lambda function on a nightly basis.
C. Create a backup plan using AWS Backup, specify a backup frequency of every 24 hours, and give the plan a nightly backup window.
D. Configure DynamoDB backup and restore for an on-demand backup frequency of every 24 hours.

Correct Answer: D

Explanation:

Explanation:
On-demand backup allows you to create full backups of your Amazon DynamoDB table for data archiving, helping you meet your corporate and governmental regulatory requirements. You can back up tables from a few megabytes to hundreds of terabytes of data, with no impact on performance and availability to your production applications. Backups process in seconds regardless of the size of your tables, so you do not have to worry about backup schedules or long-running processes. In addition, all backups are automatically encrypted, cataloged, easily discoverable, and retained until explicitly deleted.