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cloud-engineering

Load Balancer

Load Balancer

Definition

A load balancer distributes incoming network traffic across multiple backend instances to prevent any single instance from becoming a bottleneck. Application load balancers operate at Layer 7 (HTTP), enabling routing based on URL paths, headers, and host names.

Network load balancers operate at Layer 4 (TCP/UDP) for ultra-low latency. Load balancers also provide health checking and TLS termination.


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