Microsoft Azure Fundamentals (AZ-900)Describe Azure identity, security, and networkingHard
A global company has deployed its web application in multiple Azure regions (e.g., East US, West Europe, Southeast Asia) to ensure high availability and low latency for its users worldwide. They need a service that can intelligently route user traffic to the closest and healthiest endpoint. Which Azure service should they use?
- AAzure Front Door
- BAzure Application Gateway
- CAzure Traffic Manager
- DAzure Load Balancer
Show answer & explanationAnswer & explanation
Correct answer: C. Azure Traffic Manager
Azure Traffic Manager is a DNS-based traffic load balancer that distributes user traffic to global Azure regions based on various routing methods, including performance (closest endpoint) and priority (failover). It operates at the DNS level, routing users to the appropriate service endpoint.
Why the other options are wrong
- A. Azure Front Door is a global, scalable entry-point that uses the Microsoft global edge network to create fast, secure, and widely scalable web applications. While it also provides global load balancing, Traffic Manager is the more fundamental DNS-based global router often covered in AZ-900.
- B. Azure Application Gateway is a web traffic load balancer that operates at Layer 7 and is typically regional.
- D. Azure Load Balancer distributes traffic within a single region or VNet.
Azure Traffic Manager
Azure Traffic Manager is a DNS-based traffic load balancer that enables you to distribute user traffic optimally to service endpoints across global Azure regions.
- DNS-based global traffic routing
- Supports various routing methods (Priority, Performance, Geographic, Weighted, Subnet, MultiValue)
- Provides high availability by monitoring endpoint health
- Routes users to the best performing or available endpoint
Memory trick: Traffic Manager is the global GPS for your users, always finding the best route to your app.