Microsoft Azure Architect Design (AZ-301) Practice Exam

In the event of Azure region failure, what strategy should be used to ensure users can still access the web app from an alternate region?

1. Implement geo-redundant storage (GRS)

2. Use Azure Load Balancer with failover settings

3. Utilize a traffic manager profile with priority routing

4. Deploy a duplicate web app in a secondary region

The correct answer is: Utilize a traffic manager profile with priority routing

Utilizing a traffic manager profile with priority routing is the most effective strategy for ensuring users can access a web app from an alternate region in the event of a regional failure. Traffic Manager provides a way to control the distribution of user traffic across multiple regions through DNS. By setting up a priority routing method, you can specify which endpoint (web app in this case) should receive traffic first. If the primary endpoint experiences issues, Traffic Manager can automatically direct users to the secondary endpoint in another region, thereby enabling continued access to the application without requiring manual intervention. This approach ensures minimal downtime and high availability, as the Traffic Manager can swiftly reroute traffic according to predefined rules. This is essential in maintaining a seamless user experience during regional outages. In contrast, other strategies may not provide the same level of efficiency or responsiveness. For instance, while geo-redundant storage helps in protecting data across different regions, it does not directly handle traffic management or ensure that users can access a running application. Azure Load Balancer with failover settings is more suited for distributing traffic across multiple instances within the same region rather than across different regions. Deploying a duplicate web app in a secondary region is beneficial, but without a traffic management solution like Traffic Manager, the transition