How should you design the application?

DRAG DROP
You are designing a hybrid application that runs across a Microsoft Azure data center and your company’s on-premises enterprise environment.
You have the following requirements:
Windows Communication Foundation (WCF) services that reside within the corporate enterprise network must be securely exposed to the public cloud. A firewall connection and intrusive changes to the corporate network infrastructure are not allowed.
You need to design the application to meet the requirements.
How should you design the application? To answer, drag the appropriate item to the correct location or locations. Each item may be used once, more than once or not at all. You may need to drag the split bar between panes or scroll to view content.
NOTE: Each correct selection is worth one point.
Select and Place:

Correct Answer:

Explanation/Reference:
References: https://docs.microsoft.com/en-us/azure/service-bus-relay/relay-wcf-dotnet-get-started