An organization plans to deploy a public-facing web application that is expected to receive heavy traffic. To guarantee that no single backend server becomes a bottleneck and to maintain high availability, which device should be placed in front of the server farm to distribute incoming client requests across multiple servers?
A load balancer spreads client requests across several backend servers, optimizing resource utilization, reducing response times, and preventing any individual server from becoming overwhelmed. A proxy server merely acts as an intermediary for requests, an intrusion detection system monitors traffic for malicious activity, and a firewall enforces security rules; none of these devices natively distribute traffic among multiple servers the way a load balancer does.
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