Microsoft Azure Architect Design (AZ-301) Practice Exam

To achieve an active/active architecture for an application, what must you modify in Traffic Manager?

1. Add a load balancer to each region

2. Add an Azure Application Gateway to each region

3. Add an Azure content delivery network (CDN)

4. Modify the Traffic Manager routing method

The correct answer is: Modify the Traffic Manager routing method

To achieve an active/active architecture for an application using Azure Traffic Manager, modifying the Traffic Manager routing method is essential. Traffic Manager is a DNS-based load balancer that allows you to control the distribution of traffic across multiple services in different Azure regions. By adjusting the routing method, such as setting it to Performance, Priority, or Weighted, you can distribute incoming traffic effectively among various endpoints while keeping all of them operational. In an active/active setup, all instances actively handle traffic, meaning that the routing method needs to be configured appropriately to ensure that requests are balanced and distributed to multiple locations rather than just failover to one active instance. This setup helps to improve resilience and performance, utilizing all available resources rather than relying on a primary and secondary arrangement. The other options involve additional configurations or components like load balancers or application gateways, which do not directly pertain to the modification of Traffic Manager necessary for establishing an active/active architecture. These components can enhance specific scenarios, such as securing traffic or managing session persistence, but they do not address the core requirement of adjusting Traffic Manager to balance the load across all active regions.