AZ-700 Question 167
Select 2You manage a complex environment where parts of your application require high-throughput, transport-layer load balancing (e.g., TCP or UDP), and other parts require advanced routing capabilities such as path-based rules. You are deciding when to use Azure Load Balancer versus other Azure load balancing services. Which of the following scenarios are appropriate use cases for Azure Load Balancer? (Choose two.)
- A
Distributing inbound TCP traffic from the public internet to Virtual Machines in the same region
- B
Performing HTTP-level routing and path-based routing logic for web applications
- C
Implementing multi-region, active-active load balancing across geographically dispersed data centers
- D
Balancing large volumes of UDP traffic within a Virtual Network in a single region
- E
Providing SSL offload and deep inspection features using a Web Application Firewall
Show answer and explanation
Correct answers: A, D
Explanation
Azure Load Balancer is a layer 4 (TCP/UDP) load balancer designed to evenly distribute traffic (both inbound and outbound) across your VMs or other backend resources in a single region. It can be used for scenarios that require high-throughput network-level balancing, but it does not provide layer 7 features such as path-based routing, SSL termination, or a Web Application Firewall. For further details, see the official Microsoft documentation on Azure Load Balancer at https://learn.microsoft.com/azure/load-balancer/load-balancer-overview.
- A. Correct.
Correct. Azure Load Balancer is designed for layer 4 load balancing, allowing you to distribute incoming TCP traffic to your backend resources within the same region, monitor their health, and reroute traffic if a resource becomes unhealthy.
- B. Incorrect.
Incorrect. Azure Load Balancer operates at layer 4 and does not offer layer 7 routing or path-based routing. For HTTP path-based routing, Azure Application Gateway is more suitable.
- C. Incorrect.
Incorrect. Azure Load Balancer is a regional service. To distribute traffic across multiple regions, you would typically use Azure Traffic Manager or Azure Front Door, which provide global load balancing.
- D. Correct.
Correct. Azure Load Balancer supports both TCP and UDP load balancing within a single region, making it well-suited for high-throughput UDP scenarios such as streaming or real-time communications within a Virtual Network.
- E. Incorrect.
Incorrect. Features like SSL offload and Web Application Firewall (WAF) are provided by Azure Application Gateway or Azure Front Door, not by Azure Load Balancer.