Soru

Zorluk: OrtaDesign Traffic Routing and Failover Strategies

A cloud architect needs to select appropriate Azure networking services to satisfy load balancing and failover requirements for different application types. Match each operational scenario to the optimal Azure service that meets the requirements.

  • A global HTTP/S application requiring URL path-based routing, TLS offloading, and immediate failover via Anycast IP routing.Azure Front Door
  • A global TCP-based gaming application on port 7777 requiring client traffic redirection to the nearest region using DNS name resolution.Azure Traffic Manager
  • A regional web service requiring cookie-based session affinity, TLS offloading, and URL path-based routing within a virtual network.Azure Application Gateway
  • A global application requiring Layer 4 load balancing to route non-HTTP TCP/UDP traffic to different regions using a single static Anycast IP.Azure Cross-region Load Balancer

Cevap

The correct matches are: 1) The global HTTP/S application matches Azure Front Door. 2) The global TCP-based gaming application matches Azure Traffic Manager. 3) The regional web service matches Azure Application Gateway. 4) The global Layer 4 Anycast application matches Azure Cross-region Load Balancer.
The correct matches map the specific technical characteristics (layer, scope, protocol) of each scenario to the capabilities of Azure's load balancing services.

Adım Adım Çözüm

1
Analyze the scope (global vs. regional) and protocol layer (Layer 4, Layer 7, or DNS) for each scenario.
Two scenarios are global Layer 7/DNS HTTP/S, one is regional Layer 7 HTTP/S, and two are global Layer 4 TCP/UDP.
Categorizing the requirements by network layer and geographic scope immediately filters down the available Azure load balancing services.
2
Differentiate the Layer 7 requirements based on regional vs. global requirements.
The regional HTTP/S requirement inside a virtual network maps to Azure Application Gateway. The global HTTP/S application requiring fast failover and Anycast maps to Azure Front Door.
Azure Application Gateway operates within a region and virtual network, whereas Azure Front Door operates at the edge globally.
3
Differentiate the global Layer 4/DNS requirements.
The TCP port 7777 scenario requiring DNS resolution maps to Azure Traffic Manager. The global TCP/UDP scenario requiring a static Anycast IP maps to Azure Cross-region Load Balancer.
Azure Traffic Manager uses DNS redirection and supports custom TCP ports, while Azure Cross-region Load Balancer operates at Layer 4 using Anycast IP routing.

Anahtar Kavram

Selecting the correct Azure load balancing service involves evaluating regional vs. global scope, Layer 4 vs. Layer 7 routing capabilities, and DNS vs. Anycast IP architectures.
Bu soruyu puanla