What is the main role of a load balancer in network security? To act on behalf of a client when accessing resources over the internet. To act as a gateway to access certain isolated systems. To distribute network traffic across multiple servers. To capture packets for intrusion detection.

A load balancer's primary role is to distribute network traffic across multiple servers, which not only enhances performance but also increases the reliability of services. By spreading the workload, it helps in preventing any single server from becoming overwhelmed, ensuring that users experience faster response times and reduced downtime. This is crucial for high-traffic applications! Additionally, load balancers often come equipped with additional security features such as SSL termination and web application firewall capabilities. They can help protect servers from direct exposure to the internet, thus serving as a shield against malicious attacks and ensuring that only legitimate traffic reaches your resources. So, they’re not just traffic managers; they're also key players in keeping your network secure!