Microsoft Certified: Azure Solutions Architect ExpertDesign business continuity solutionsMedium
A global e-commerce platform relies on Azure Kubernetes Service (AKS) clusters deployed in multiple Azure regions to serve its customers. To optimize user experience, the company wants to ensure that user requests are routed to the closest healthy AKS cluster. Additionally, in case of a regional outage, traffic should automatically fail over to the next available region. Which Azure service should be used to achieve this global traffic routing and failover?
- AAzure Front Door.
- BAzure Traffic Manager.
- CAzure Application Gateway.
- DAzure Load Balancer.
Show answer & explanationAnswer & explanation
Correct answer: A. Azure Front Door.
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. It provides dynamic site acceleration (DSA), global HTTP/S load balancing, and application-layer security, making it ideal for routing traffic to the closest healthy backend (AKS cluster) and providing automatic failover across regions.
Why the other options are wrong
- B. Azure Traffic Manager provides global DNS-based traffic routing and failover at the DNS level (Layer 3/4), but Azure Front Door offers more advanced Layer 7 routing, performance optimization, and security features for web applications.
- C. Azure Application Gateway operates at Layer 7 but is region-specific and focuses on application-level routing within a single region, not global distribution or failover.
- D. Azure Load Balancer operates at Layer 4 and is region-specific, not suitable for global traffic routing or multi-region failover.
Azure Front Door
Azure Front Door is a global, scalable entry-point that uses the Microsoft global edge network to deliver fast, secure, and highly available web applications across multiple regions.
- Global HTTP/S load balancing at Layer 7.
- Dynamic Site Acceleration (DSA).
- Automatic global failover.
- Integrated WAF and DDoS protection.
Memory trick: Front Door is your Global Gateway to Fast and Safe Web Apps.