Question

Difficulty: MediumApplication Load Balancing and Delivery

An enterprise is designing a global web application that will be deployed across the East US and West Europe regions. The application requires global HTTP/S load balancing with SSL/TLS termination at the edge, along with regional path-based routing and Web Application Firewall (WAF) protection inside each regional virtual network. Additionally, the regional ingress points must be provisioned using a public IP configuration that is compatible with the regional load balancing service SKU. Which two services and configurations should you include in the design to meet these requirements? (Choose two.)

  1. Azure Front DoorAnswer
  2. Azure Application Gateway V2 associated with a Standard SKU public IP addressAnswer
  3. C
    Azure Traffic Manager
  4. D
    Azure Application Gateway V2 associated with a Basic SKU public IP address

Answer

The correct design should include Azure Front Door to handle global traffic routing and SSL/TLS termination at the edge, and Azure Application Gateway V2 configured with a Standard SKU public IP address to handle regional path-based routing and WAF protection.
The combination of Azure Front Door and Azure Application Gateway V2 with a Standard SKU public IP address satisfies all design constraints. Azure Front Door handles global Layer 7 traffic routing and SSL/TLS termination at the edge. Within each region, Azure Application Gateway V2 provides localized path-based routing, WAF capabilities, and SSL/TLS termination closer to the backend resources. Using a Standard SKU public IP address is mandatory for Application Gateway V2, preventing deployment errors.

Step-by-Step Solution

1
Analyze the global routing requirements.
Identify that the application requires global HTTP/S load balancing, edge SSL/TLS termination, and routing across multiple regions. Azure Front Door fits this layer.
Azure Front Door is a global Layer 7 load balancer that handles HTTP/S traffic and SSL termination at the edge.
2
Analyze the regional routing and security requirements.
Identify that the application requires WAF protection, localized path-based routing, and SSL termination within the virtual network. Azure Application Gateway V2 fits this layer.
Azure Application Gateway is a regional Layer 7 load balancer providing path-based routing, SSL termination, and WAF integration.
3
Evaluate SKU compatibility for the public IP endpoints.
Confirm that Azure Application Gateway V2 requires a Standard SKU public IP. Using a Basic SKU public IP will fail deployment validation.
Azure resource rules forbid mixing Basic SKU public IPs with Standard SKU/V2 resources like Application Gateway V2.

Key Concept

Multi-tier global and regional application load balancing using Azure Front Door and Azure Application Gateway V2 while adhering to SKU compatibility requirements.
Estimated Time:2m 0s
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