A company is migrating applications to AWS but lacks full knowledge of application dependencies. One application has many low-latency dependencies that use a custom IP-based protocol on port 1000. The company has installed the AWS Application Discovery Agent and collected months of data. How should the company identify which servers need to be migrated with the application (the servers that communicate on port 1000) so they can be moved together?

The correct option leverages AWS Migration Hub's integration with Application Discovery Service data. After collecting data with the Discovery Agent, Migration Hub can display a network graph showing interacting servers. To identify specific port-based dependencies, enabling data exploration in Amazon Athena allows querying the detailed transferred-traffic data collected by the Discovery Agent. This data includes source/destination IPs and ports, making it ideal for finding servers communicating on port 1000. Finally, these identified servers can be grouped in Migration Hub for co-migration. The incorrect options are flawed because: AWS Application Migration Service (AMS) is for rehosting, not for dependency mapping. While it can launch test instances, it doesn't provide the network dependency analysis needed here. Network Access Analyzer is for verifying network reachability and security, not for discovering active communication patterns or port usage between servers based on collected traffic data. Pushing the CloudWatch agent and exporting logs to S3 for Athena querying is a manual and less efficient method for this specific task compared to directly querying the Application Discovery Service's collected traffic data via Athena, which is designed for this purpose.