A company has an application that needs to be moved to an AWS VPC network. This application is based on multicast and needs to be moved with the least amount of effort. What can be done to fulfill this requirement?

Answer options:

A.Create EC2 Instances in the subnet and then migrate the application onto the EC2 Instance.
B.The application needs to be changed to support unicast before moving it to AWS.
C.Consider creating an overlay network between EC2 Instances and then port the application.
D.Consider enabling encryption on the underlying EBS volumes which will be used to support the EC2 Instance.

Answer – C
Currently Amazon VPC service doesn’t presently permit multicast or broadcast traffic. In the event that you have an application that uses multicast to function, you can leverage GRE tunnels to create a mesh VPN overlay network between your Amazon EC2 instances.
Option A is incorrect because you need to set up an overlay network first.
Option B is incorrect because this would be a major change for the application.
Option D is incorrect because this would not help in the requirement.
An example of a vendor that can provide an overlay network is given below.
https://aws.amazon.com/marketplace/pp/B071RMCZ1X