Q93 — AWS SAA-C03 Ch.14

Question 93 of 100 | ← Chapter 14

Q1093. A company runs a critical three-tier web application that consists of multiple virtual machines (VMs) and virtual databases in an on- premises environment. The company wants to set up a disaster recovery (DR) environment in AWS.The company requires a 15-minute recovery time objective (RT0). The company must be able to test the failover solution to validate the recovery. The solution must provide an automated failover mechanism.Which solution will meet these requirements?

Correct Answer: D. Use AWS Elastic Disaster Recovery to replicate the VMs incrementally to AWS. Configure Elastic Disaster Recovery to automate the DR process.

Explanation

To address the company's requirements for a disaster recovery (DR) environment in AWS with a 15-minute recovery time objective (RTO), the ability to test the failover solution, and an automated failover mechanism, let's evaluate each option:A. Use AWS Backup to create backups of the on-premises VMs and to restore the backups in AWS. Configure recovery to Amazon EC2 instances to meet the RTO requirement.AWS Backup is primarily a backup and restore service and may not provide the incremental replication and automated failover capabilities required to meet a 15-minute RTO. Restoring backups can be time-consuming and may not meet the RTO requirement. B. Use AWS Database Migration Service (AWS DMS) to replicate the on-premises databases to Amazon RDS. Set up AWS Storage Gateway for baseline and incremental data replication to AWS to meet the RTO requirement.AWS DMS is suitable for database migration, but it alone does not address the replication of the entire VM workload.AWS Storage Gateway can be used for file-based data replication, but it may not provide the automated failover and testing capabilities required.C. Use AWS DataSync and AWS Storage Gateway to migrate the baseline and incremental data to AWS. Use Amazon EC2, Amazon S3, and an Application Load Balancer to set up the DR environment.While AWS DataSync and AWS Storage Gateway can handle data migration, they do not provide a comprehensive DR solution with automated failover and testing capabilities. Setting up the DR environment manually with EC2, S3, and an Application Load Balancer would be complex and may not meet the RTO requirement without additional automation. D. Use AWS Elastic Disaster Recovery to replicate the VMs incrementally to AWS. Configure Elastic Disaster Recovery to automate the DR process.AWS Elastic Disaster Recovery (formerly known as AWS CloudEndure Disaster Recovery) is designed for disaster recovery of entire workloads, including VMs.It provides incremental replication to minimize data transfer and ensure that the DR environment is up-to- date.It includes automated failover and testing capabilities, which are essential for meeting the RTO requirement and validating the recovery process.Given the requirements for an automated failover mechanism, a 15-minute RTO, and the ability to test the failover solution, the most suitable solution is:D. Use AWS Elastic Disaster Recovery to replicate the VMs incrementally to AWS. Configure Elastic Disaster Recovery to automate the DR process.This solution provides a comprehensive, automated DR solution that meets all the company's requirements for disaster recovery in AWS.