AWS Certified Solutions Architect - Professional
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A company operates an application on 20 persistent Amazon EC2 instances, each with multiple attached Amazon EBS volumes, in the AWS Cloud. They require a backup solution that maintains backups in a separate AWS Region, allows for the recovery of EC2 instances and their configurations within one business day, and ensures no more than one day's worth of data loss. The solution must also be efficient in terms of operational management and cost, considering the company's limited staff resources. The company has already developed an AWS CloudFormation template for deploying the necessary network configuration in a secondary Region. Which of the following solutions meets these requirements?
A
Develop a supplementary CloudFormation template to recreate the EC2 instances in the secondary Region. Implement daily multivolume snapshots using AWS Systems Manager Automation runbooks, and transfer these snapshots to the secondary Region. In case of a failure, initiate the CloudFormation templates, recover the EBS volumes from the snapshots, and shift usage to the secondary Region.
B
Employ Amazon Data Lifecycle Manager (Amazon DLM) to generate daily multivolume snapshots of the EBS volumes. In the event of a failure, activate the CloudFormation template and utilize Amazon DLM to restore the EBS volumes, then transition usage to the secondary Region.
C
Leverage AWS Backup to establish a scheduled daily backup plan for the EC2 instances, configuring the backup task to replicate the backups to a vault in the secondary Region. Upon failure, deploy the CloudFormation template, restore the instance volumes and configurations from the backup vault, and redirect usage to the secondary Region.
D
Set up EC2 instances of identical size and configuration in the secondary Region. Schedule daily data transfers from the primary Region to the secondary Region using AWS DataSync. In the event of a failure, execute the CloudFormation template and reroute usage to the secondary Region.