Q11 — AWS SAA-C03 Ch.5

Question 11 of 65 | ← Chapter 5

Q311. A company runs applications on Amazon EC2 instances in one AWS Region. The company wants to back up the EC2 instances to a second Region.The company also wants to provision EC2 resources in the second Region and manage the EC2 instances centrally from one AWS account. Which solution will meet these requirements MOST cost_effectively?

Correct Answer: C. Create a backup plan by using AWS Backup. Configure cross-Region backup to the second Region for the EC2 instances

Explanation

To meet the company's requirements of backing up EC2 instances to a second region, provisioning EC2 resources in the second region, and managing the EC2 instances centrally from one AWS account in a cost-effective manner, the most suitable solution is: C. Create a backup plan using AWS Backup and configure cross-Region backup to the second region for the EC2 instances. Option C suggests using AWS Backup to create a backup plan for the EC2 instances. AWS Backup is a centralized backup management service that simplifies the process of backing up data across multiple AWS services. By configuring a backup plan, the company can define the backup schedule, retention periods, and other backup settings. Configuring cross-Region backup to the second region allows for the automatic replication of backup data from the source region to the second region. This ensures that the EC2 instances' data is securely backed up in a separate region for disaster recovery purposes. Using AWS Backup provides a cost-effective solution as it is a managed service that simplifies backup management. It eliminates the need for custom backup scripts or manual snapshot copying, reducing operational overhead. Option A suggests creating a disaster recovery (DR) plan with a similar number of EC2 instances in the second region and configuring data replication. While this option can provide a robust DR solution, it may involve additional costs due to maintaining a similar number of running EC2 instances in the second region. Option B suggests creating point-in-time Amazon Elastic Block Store (Amazon EBS) snapshots of the EC2 instances and copying the snapshots to the second region periodically. While this option can provide a backup mechanism, it requires manual snapshot management and copying, which can be more complex and time-consuming compared to using AWS Backup. Option D suggests deploying a similar number of EC2 instances in the second region and using AWS DataSync to transfer the data from the source region to the second region. While this option can facilitate data transfer, it involves additional costs and complexity in managing and maintaining the EC2 instances and data synchronization. In summary, option C, creating a backup plan using AWS Backup and configuring cross-Region backup to the second region, provides a cost-effective and streamlined solution for backing up EC2 instances to a second region while centrally managing them from one AWS account.