Q55 — AWS SAP-C02 Ch.3

Question 55 of 75 | ← Chapter 3

Q280. A company has an application in the AWS Cloud. The application runs on a fleet of 20 Amazon EC2 instances. The EC2 instances are persistent and store data on multiple attached Amazon Elastic Block Store (Amazon EBS) volumes. The company must maintain backups in a separate AWS Region The company must be able to recover the EC2 instances and their configuration within 1 business day, with loss of no more than 1 day's worth of data. The company has limited staff and needs a backup solution that optimizes operational efficiency and cost. The company already has created an AWS CloudFormation template that can deploy the required network configuration in a secondary Region. Which solution will meet these requirements?

Correct Answer: C. Use AWS Backup to create a scheduled daily backup plan for the EC2 instances. Configure the backup task to copy the backups to a vault in the secondary Region. In the event of a failure, launch the CloudFormation template restore the instance volumes and configurations from the backup vault and transfer usage to the secondary Region

Explanation

The solution that meets the requirements to maintain backups in a separate AWS Region and recover EC2 instances and their configuration within 1 business day, with loss of no more than 1 day's worth of data, while optimizing operational efficiency and cost is C. C. Use AWS Backup to create a scheduled daily backup plan for the EC2 instances. Configure the backup task to copy the backups to a vault in the secondary Region. In the event of a failure, launch the CloudFormation template, restore the instance volumes and configurations from the backup vault, and transfer usage to the secondary Region. This solution involves using AWS Backup to create a scheduled daily backup plan for the EC2 instances. The backup task is configured to copy the backups to a vault in the secondary Region using cross-Region replication. In the event of a failure, the company can launch the CloudFormation template, restore the instance volumes and configurations from the backup vault, and transfer usage to the secondary Region. This approach optimizes operational efficiency and cost because it uses built-in AWS services for backup and recovery, and leverages cross-Region replication to copy only the data that has changed since the last backup. A, B, and D are not optimal solutions: A. Create a second CloudFormation template that can recreate the EC2 instances in the secondary Region. Run daily multivolume snapshots by using AWS Systems Manager Automation runbooks. Copy the snapshots to the secondary Region. In the event of a failure, launch the CloudFormation templates, restore the EBS volumes from snapshots, and transfer usage to the secondary Region. This solution involves creating a second CloudFormation template that can recreate the EC2 instances in the secondary Region. It also requires running daily multivolume snapshots using AWS Systems Manager Automation runbooks, copying the snapshots to the secondary Region, and restoring the EBS volumes from snapshots in the event of a failure. While this approach provides a backup solution, it is more complex than necessary and requires additional management overhead. B. Use Amazon Data Lifecycle Manager (Amazon DLM) to create daily multivolume snapshots of the EBS volumes. In the event of a failure, launch the CloudFormation template and use Amazon DLM to restore the EBS volumes and transfer usage to the secondary Region. This solution involves using Amazon Data Lifecycle Manager (DLM) to create daily multivolume snapshots of the EBS volumes. While this approach can provide a backup solution, it does not address the requirement to maintain backups in a separate AWS Region. D. Deploy EC2 instances of the same size and configuration to the secondary Region. Configure AWS DataSync daily to copy data from the primary Region to the secondary Region. In the event of a failure, launch the CloudFormation template, and transfer usage to the secondary Region. This solution involves deploying EC2 instances of the same size and configuration to the secondary Region, then using AWS DataSync to copy data from the primary to the secondary Region on a daily basis. While this approach can provide a backup solution, it is less efficient than using AWS Backup because it requires deploying and managing additional infrastructure to copy data between Regions. Maybe B ?