Microsoft Certified: Azure Fundamentals (AZ-900) Practice Exam

What service can be used to ensure high traffic management and application scaling?

1. Azure Front Door

2. Azure Traffic Manager

3. Azure Application Gateway

4. Azure Blob Storage

The correct answer is: Azure Application Gateway

To ensure high traffic management and application scaling, Azure Application Gateway is designed specifically for these purposes. It operates as a web traffic load balancer that helps distribute incoming application traffic across multiple servers. This functionality allows it to optimize resource usage, enhance application performance, and ensure higher availability during periods of high demand. The Application Gateway also includes features such as SSL termination, which offloads the SSL decryption work from the back-end servers, enabling them to focus on processing requests more efficiently. Additionally, it supports URL-based routing, allowing you to direct traffic based on the incoming URL to various back-end resources, which is essential for managing high traffic efficiently. While Azure Front Door and Azure Traffic Manager also play roles in handling traffic and ensuring availability, their primary functions differ slightly. Azure Front Door focuses on global load balancing and provides features for routing at the application layer along with caching capabilities. Azure Traffic Manager, on the other hand, is a DNS-based load-balancing solution that directs user traffic across various regions based on the chosen routing method, without the deep application layer functionalities provided by the Application Gateway. Azure Blob Storage, while an important storage solution in Azure, is not directly related to traffic management or scaling applications.