Microsoft Certified: Azure Fundamentals (AZ-900) Practice Exam

Which is true about Azure Load Balancer?

1. You must use Azure Load Balancer if you want to distribute traffic among your virtual machines running in Azure.

2. Azure Load Balancer works with internet-facing traffic only.

3. Azure Load Balancer distributes traffic among similar systems, making your services more highly available.

4. Azure Load Balancer requires manual intervention for traffic distribution.

The correct answer is: Azure Load Balancer distributes traffic among similar systems, making your services more highly available.

The statement that Azure Load Balancer distributes traffic among similar systems, making services more highly available, is accurate. Azure Load Balancer provides a way to allocate incoming network traffic across multiple virtual machines or services that are functioning in a similar role. This ensures that no single instance becomes overwhelmed with traffic, which not only enhances performance but also increases the overall availability of your applications. By distributing workloads, Azure Load Balancer helps to provide redundancy, reducing the risk of downtime and contributing to fault tolerance in your architecture. The other options do not convey the complete picture. For instance, Azure Load Balancer can be configured for both internal and external traffic, not just limited to internet-facing traffic. Furthermore, while Azure Load Balancer automates the distribution of traffic, it doesn't necessitate manual intervention for its operations. Its design inherently supports automatic traffic management based on predefined rules and health probes, making it a seamless component in scaling applications efficiently.