A company is migrating a legacy application that relies on multicast networking. AWS VPCs do not natively support multicast. Which THREE approaches can be used to support this workload on AWS? (Select THREE)

Answer options:

Use AWS Transit Gateway Multicast.

Deploy a software-based multicast overlay network on EC2 instances.

Refactor the application to use Amazon SNS (publish/subscribe) instead of multicast.

Enable the 'Multicast' flag on the VPC settings.

Use an Application Load Balancer.

Use AWS Direct Connect to route multicast traffic directly to the VPC router.

How to approach this question

Identify workarounds and native solutions for multicast.

Full Answer

Use AWS Transit Gateway Multicast., Deploy a software-based multicast overlay network on EC2 instances., Refactor the application to use Amazon SNS (publish/subscribe) instead of multicast.

While VPCs drop multicast, you can use Transit Gateway Multicast, build an overlay network, or refactor the app to use cloud-native pub/sub (SNS).

Common mistakes

Assuming VPCs natively support multicast routing.

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