what is the use of load balancer ?

Accepted answer

A load balancer acts as the “traffic cop” sitting in front of your servers and routing client requests across all servers capable of fulfilling those requests. You can read more about it here:

https://www.nginx.com/resources/glossary/load-balancing/

Prasad Rane6y ago

A load balancer is used to distribute traffic to nodes or Vms in the network.

Mukesh Nayak8y ago

Load balancing is applied for the high performance and availabilty of the the application. In this mechanism application gets deployed to multiple sources. Request to the application is optimally divided among the sources to reduce workload and faster execution.

Please refer following link for more information:

https://en.wikipedia.org/wiki/Load_balancing_(computing)

https://www.arraynetworks.com/functions-server-load-balancing.html