AZ-305 Question 235
Select 2A global retail organization is running a multi-region web application in Azure, where each region hosts its own set of application servers. They have been receiving complaints from users regarding slow response times and inconsistent performance from different parts of the world. The organization wants a solution that directs users to the nearest and healthiest application endpoint, providing low-latency access while ensuring high availability. Which two changes should you recommend to optimize network performance?
- A
Deploy Azure Traffic Manager with Performance routing to direct traffic based on the lowest-latency endpoint.
- B
Implement Azure Front Door to provide global HTTP load balancing and reduce latency for dynamic and static content.
- C
Increase the size of virtual machines in each region to provide additional computing capacity for end-user requests.
- D
Enable forced tunneling from all instances back to the on-premises datacenter for centralized inspection.
Show answer and explanation
Correct answers: A, B
Explanation
To optimize network performance in a multi-region Azure application, you should focus on routing users to the closest and healthiest regional deployment. Using Azure Traffic Manager in Performance mode helps ensure that users' DNS queries resolve to the lowest-latency endpoint, while Azure Front Door provides global load balancing and optimizes the routing of HTTP/HTTPS requests. Increasing VM size or forcing all traffic back on-premises does not directly address global routing latency issues. More details can be found in the Azure documentation on Traffic Manager (https://docs.microsoft.com/azure/traffic-manager/traffic-manager-overview) and Azure Front Door (https://docs.microsoft.com/azure/frontdoor/front-door-overview).
- A. Correct.
Option 1: Correct. Azure Traffic Manager with Performance routing directs users to the lowest-latency endpoint, improving global user experience by dynamically mapping user requests to the nearest or most responsive Azure region.
- B. Correct.
Option 2: Correct. Azure Front Door can further optimize performance by providing layer 7 load balancing and SSL offloading, accelerating content delivery across regions for both static and dynamic content.
- C. Incorrect.
Option 3: Incorrect. Simply scaling up VMs (increasing their size) might help with CPU or memory constraints, but it does not address the core need of routing users to the optimal region for reduced latency and higher availability.
- D. Incorrect.
Option 4: Incorrect. Forced tunneling routes all internet traffic to on-premises, often adding unnecessary latency. It is typically used for compliance and inspection but does not help with performance in a globally distributed application.