Microsoft Azure Architect Design (2020, legacy) — Question 48

Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
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You plan to deploy multiple instances of an Azure web app across several Azure regions.
You need to design an access solution for the app. The solution must meet the following replication requirements:
✑ Support rate limiting.
✑ Balance requests between all instances.
✑ Ensure that users can access the app in the event of a regional outage.
Solution: You use Azure Application Gateway to provide access to the app.
Does this meet the goal?

Answer options

Correct answer: B

Explanation

The correct answer is B because Azure Application Gateway does not inherently support rate limiting in the way required for this scenario. While it can distribute traffic among instances, it does not guarantee access during a regional outage, especially if the application is not deployed in multiple regions with proper failover configurations.