AWS Certified Solutions Architect - Professional 2020

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Recommending Transit VPC?

The ProTips seem to recommend Transit VPC, but I would have thought Transit Gateway is today’s solution of choice?

1 Answers

Hi Steve,

This question has come up before here in the forum.  Basically the difference is that a transit VPC is more of a network architecture concept while Transit Gateway is a service.  Gateways can simplify your network but there are some reasons why a more traditional transit VPC.  For example, some people don’t like the fact that a Transit Gateway is kind of a black box.

AWS will be the first to say there is no "best" way because of so many different variables.  (See AWS Transit Gateway Tech Talk: For the exam, it’s important to know the general use cases where a Transit VPC or a Transit Gateway might be used but I wouldn’t worry about which is "right".


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