# Overview A software load balancer which has the ability to scale based on real-time traffic. # Key Considerations The ELB monitors resources to determine if there is a need to scale up or down based on preferred metrics, like CPU utilization or number of connections. It can also use [[Health Checking]] to determine if there is a need to scale. # Pros - Reduces cost by only using required number of load balancers # Cons - May result in increased latency if an appropriate scaling strategy is not selected # Use Cases # Related Topics