A company wants to implement a web-based solution on Azure. The development and deployment process would use services based on Azure. The company intends to implement the following as part of the solution. Host the web application using the Azure Web App service.
Have an active-passive setup for the web application.
Route traffic to the active setup for all users.
If the primary endpoint fails, then ensure that users are directed to a secondary endpoint.
Which of the following service could be used for routing user traffic based on these requirements?

Answer options:

A.Azure Standard Load Balancer
B.Azure DevOps
C.Azure Traffic Manager
D.Azure Functions

Answer – C 
The Azure Traffic Manager has different routing methods that can be used for routing traffic. 
The Microsoft documentation mentions the following. 

The other options are incorrect as they don’t provide any routing options. 
For more information on Azure Traffic Manager, please visit the following URL- 

https://docs.microsoft.com/en-us/azure/traffic-manager/traffic-manager-overview