A company wants to migrate its workloads from on premises to AWS. The workloads run on Linuxand Windows. The company has a large on-premises intra…

This solution outlines the standard "assess" phase of a migration using AWS-native tools. First, the AWS Application Discovery Agent is installed on-premises (A) to collect detailed server information, including performance metrics and network dependencies, which is a core requirement. This data is sent to AWS Migration Hub. Within Migration Hub, the discovered servers are grouped into logical applications (D) to organize the migration effort. Finally, Migration Hub uses the collected performance data to generate right-sized, cost-effective Amazon EC2 instance recommendations (E), directly fulfilling the company's need for cost optimization. This three-step process provides a complete workflow from discovery to planning.

B. AWS Systems Manager Agent is primarily for managing and operating existing resources (in AWS or on-premises), not for the initial discovery and assessment phase of a migration.
C. AWS Systems Manager Application Manager is used to manage and view operational data for applications already defined and running within AWS, not for grouping on-premises servers for migration.
F. AWS Trusted Advisor analyzes existing AWS resources to provide optimization recommendations. It does not import on-premises server data to provide pre-migration instance recommendations.

1. AWS Application Discovery Service User Guide: The guide states, "The AWS Application Discovery Agent...is software that you install on on-premises servers and VMs...The agent collects system configuration, system performance, running processes, and details of the network connections between systems." This supports option A as the correct method for data collection. (Source: AWS Application Discovery Service Documentation, "How AWS Application Discovery Agent works").

2. AWS Migration Hub User Guide: The documentation explains, "After your discovery tools collect data about your on-premises servers, you can group servers into applications in Migration Hub. Grouping servers helps you to more easily plan the migration of your applications." This validates option D for grouping servers. (Source: AWS Migration Hub Documentation, "Grouping servers into applications").

3. AWS Migration Hub User Guide: The guide details the recommendation feature: "Migration Hub provides EC2 instance recommendations for servers discovered in your on-premises environment... These recommendations help you identify the right-sized instance for your needs and can help you save money by avoiding overprovisioning." This confirms option E. (Source: AWS Migration Hub Documentation, "EC2 instance recommendations").

4. AWS Systems Manager User Guide: The documentation describes its purpose: "AWS Systems Manager is the operations hub for your AWS applications and resources... to automate operational tasks across your AWS resources." This shows its focus is on management, not migration assessment, making B and C incorrect for this scenario. (Source: AWS Systems Manager Documentation, "What is AWS Systems Manager?").