AZ-700 Question 164
Select 2You have deployed a multi-tier application in two different Azure regions. Each region has VMs running behind an Azure Load Balancer with a publicly accessible IP address. You want to route users to the region nearest to them and automatically fail over to the other region if one becomes unavailable. Which of the following actions should you take to achieve these requirements?
- A
Create an Azure Traffic Manager profile with the Performance routing method.
- B
Add each Azure Load Balancer public IP address as an endpoint in the Azure Traffic Manager profile.
- C
Configure inbound NAT rules on each Azure Load Balancer for Remote Desktop (RDP) to the VMs in both regions.
- D
Set the Azure Load Balancer backend pool distribution mode to Weighted Round Robin in each region.
Show answer and explanation
Correct answers: A, B
Explanation
Combining Azure Load Balancers with Azure Traffic Manager is a common pattern for multi-region high availability. Azure Traffic Manager manages DNS-based routing at a global level, while Azure Load Balancer handles local load distribution within each region. By using the Performance routing method in Traffic Manager and registering each region's public Load Balancer IP as an endpoint, users are routed to their nearest host. If a region fails, Traffic Manager automatically redirects traffic to the remaining active region. Refer to Microsoft� official documentation on Traffic Manager routing methods and Azure Load Balancer configuration for more details.
- A. Correct.
Correct. Azure Traffic Manager with the Performance routing method sends users to the closest endpoint in terms of network latency. It also enables automatic failover if a region goes down.
- B. Correct.
Correct. Each region� public Azure Load Balancer IP address must be configured as an endpoint in the Traffic Manager profile. This allows Traffic Manager to direct user requests to the appropriate regional Load Balancer.
- C. Incorrect.
Incorrect. Inbound NAT rules for RDP do not address global traffic distribution or failover. While NAT rules help with VM management, they have no impact on multi-region routing for end-user traffic.
- D. Incorrect.
Incorrect. Weighted Round Robin can balance traffic among endpoints, but it does not ensure nearest-region routing. For geographical performance-based routing, Performance routing in Traffic Manager is required.