AWS Certified DevOps Engineer – Professional (DOP-C02) — Question 306

A company discovers that its production environment and disaster recovery (DR) environment are deployed to the same AWS Region. All the production applications run on Amazon EC2 instances and are deployed by AWS CloudFormation. The applications use an Amazon FSx for NetApp ONTAP volume for application storage. No application data resides on the EC2 instances.

A DevOps engineer copies the required AMIs to a new DR Region. The DevOps engineer also updates the CloudFormation code to accept a Region as a parameter. The storage needs to have an RPO of 10 minutes in the DR Region.

Which solution will meet these requirements?

Answer options

• A. Create an Amazon S3 bucket in both Regions. Configure S3 Cross-Region Replication (CRR) for the S3 buckets. Create a scheduled AWS Lambda function to copy any new content from the FSx for ONTAP volume to the S3 bucket in the production Region.
• B. Use AWS Backup to create a backup vault and a custom backup plan that has a 10-minute frequency. Specify the DR Region as the target Region. Assign the EC2 instances in the production Region to the backup plan.
• C. Create an AWS Lambda function to create snapshots of the instance store volumes that are attached to the EC2 instances. Configure the Lambda function to copy the snapshots to the DR Region and to remove the previous copies. Create an Amazon EventBridge scheduled rule that invokes the Lambda function every 10 minutes.
• D. Create an FSx for ONTAP instance in the DR Region. Configure a 5-minute schedule for a volume-level NetApp SnapMirror to replicate the volume from the production Region to the DR Region.

Correct answer: D

Explanation

Amazon FSx for NetApp ONTAP supports native NetApp SnapMirror replication, which allows for efficient, block-level replication between ONTAP file systems across AWS Regions. Setting SnapMirror to a 5-minute schedule easily satisfies the 10-minute Recovery Point Objective (RPO) requirement. Other options are incorrect because application data is stored on FSx for ONTAP rather than EC2 instances or instance store volumes, making EC2-focused backups or instance store snapshots ineffective.