Solution for Connecting Users to Closest Instance of App1
Question
You have a web app named App1 that is hosted on-premises and on four Azure virtual machines. Each virtual machine is in a different region.
You need to recommend a solution to ensure that users will always connect to the closest instance of App1. The solution must prevent the users from attempting to connect to a failed instance of App1.
Which two possible recommendations achieve the goal? Each correct answer presents a complete solution.
NOTE: Each correct selection is worth one point.
Answers
Explanations
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A. B. C. D. E.AD
To ensure that users always connect to the closest instance of App1 and prevent them from attempting to connect to a failed instance of App1, the following two recommendations can be considered:
A. Azure Front Door Service: Azure Front Door Service is a global, scalable entry point for web applications. It offers load balancing, SSL offloading, application acceleration, and routing to back-end applications. With Front Door Service, you can define routing rules based on various factors, such as the user's geographic location, the back-end pool's health, and the URL path.
In this scenario, you can configure Azure Front Door Service to route user traffic to the closest instance of App1 by using its geographic routing capabilities. Front Door Service will route the user's request to the closest instance of App1 based on the user's IP address. If one of the instances of App1 fails, Front Door Service will automatically route traffic to the healthy instances.
B. Azure Traffic Manager: Azure Traffic Manager is a DNS-based traffic routing service that enables you to distribute traffic across multiple endpoints in different regions. Traffic Manager uses DNS to direct user traffic to the most appropriate endpoint based on a range of routing methods, such as geographic location, round-robin, or performance.
In this scenario, you can configure Azure Traffic Manager to route user traffic to the closest instance of App1 based on the user's geographic location. If one of the instances of App1 fails, Traffic Manager will automatically route traffic to the healthy instances.
Both Azure Front Door Service and Azure Traffic Manager can provide high availability, scalability, and fault tolerance for your web application. The choice between the two services will depend on your specific requirements, such as the need for SSL offloading, application acceleration, or URL-based routing, which are offered by Azure Front Door Service.
