Which statement best describes the primary benefit of a load balancer?

Which statement best describes the primary benefit of a load balancer?

• A. Encrypts traffic
• B. Reduces IP addresses
• C. Distributes traffic to multiple servers to improve availability and performance
• D. Increases network latency

Answer: (C)

The main idea here is that a load balancer spreads client requests across several servers, which keeps services available and responsive even as demand changes. By directing traffic to a healthy server in a pool, it provides fault tolerance: if one server fails, others continue handling requests, so the service stays online. It also supports scalability: you can add more servers as traffic grows, and the load balancer will allocate requests among them to prevent any single server from becoming a bottleneck. This distribution helps maintain consistent performance because no one server becomes overwhelmed, which typically leads to faster and more reliable responses for users. Many load balancers continuously check the health of backend servers and stop sending traffic to any that aren’t responding, further boosting availability. While some load balancers can terminate TLS or perform other optimizations, those features are supplementary; the core purpose is to balance the load to improve availability and performance.

The main idea here is that a load balancer spreads client requests across several servers, which keeps services available and responsive even as demand changes. By directing traffic to a healthy server in a pool, it provides fault tolerance: if one server fails, others continue handling requests, so the service stays online. It also supports scalability: you can add more servers as traffic grows, and the load balancer will allocate requests among them to prevent any single server from becoming a bottleneck. This distribution helps maintain consistent performance because no one server becomes overwhelmed, which typically leads to faster and more reliable responses for users. Many load balancers continuously check the health of backend servers and stop sending traffic to any that aren’t responding, further boosting availability. While some load balancers can terminate TLS or perform other optimizations, those features are supplementary; the core purpose is to balance the load to improve availability and performance.