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Hello toxic,
Thank you for raising this point.
You’re correct that Azure Front Door provides Layer 7 load-balancing capabilities, and Microsoft does describe it as offering global load balancing for web applications. However, in the context of this question, “load balancer” refers to a regional load-balancing service that directly fronts backend Azure virtual machines and performs SSL termination within the application’s Azure network boundary. Azure Application Gateway fits this requirement because it is a dedicated Layer 7 load balancer designed to sit in front of VM-based web tiers and handle SSL/TLS termination for those backends.
Azure Front Door, while capable of SSL offloading and Layer 7 routing, functions as a global edge entry service that operates outside the virtual network and is typically used to distribute traffic across regions or origins rather than as the primary regional load balancer for VM tiers. Based on the stated requirement to deploy a load balancer supporting SSL termination for the application architecture, Azure Application Gateway is the most appropriate service, which is why Front Door is not selected in this scenario.
We hope this answers your query. Please let us know if you have any further questions or need additional clarification.
Cheers,
Irene @ Tutorials Dojo
