A company has purchased a software license and installed the software in on-premise servers. The servers are being migrated from on premise to AWS EC2 and the license requires that the software should be installed in the same EC2 physical hosts. As a DevOps engineer, you need to deploy the EC2 instances and manage the software license properly. Which combinations of services would you choose to achieve the requirements?

Answer options:

A.Launch EC2 instances with auto-placement hosts to install the software. Manage the software license in AWS Service Catalog with a license configuration.
B.Create reserved EC2 instances to install the software. Reserve Elastic IPs and associate them with the instances. Manage the software license through an AWS Config rule.
C.Create an EC2 Capacity Reservation for the EC2 instances to install the software. Manage the license in AWS System Manager by counting the number of used vCPUs. Trigger an SNS notification when the license reaches its limits.
D.Host the applications in EC2 dedicated hosts and manage the software license through AWS License Manager.

Correct Answer – D
As the software license asks for the same physical hosts, EC2 dedicated hosts should be used. EC2 dedicated host is also integrated with AWS License Manager which is a service to help you manage the software licenses. Details can be found in https://aws.amazon.com/ec2/dedicated-hosts/.
Option A is incorrect: With auto-placement hosts, the EC2 instances are launched on pre-allocated hosts. The first part of the answer is correct. However, AWS Service Catalog is not appropriate to manage software licenses.
Option B is incorrect: Because either reserved EC2 instances or Elastic IPs cannot guarantee that the software runs on the same physical hosts.
Option C is incorrect: A Capacity Reservation helps to reserve the specified capacity for your use. But it does not determine the dedicated hosts for EC2 instances. Besides, AWS System Manager is not suitable to manage licenses.
Option D is CORRECT: The combinations of EC2 dedicated hosts and AWS License Manager can achieve the requirements.