Load balancers are usually present in large environments in which different servers (e.g., Web, application, database, etc.) are accessed by a large number of internal or external users. These servers are grouped in server farms that contain a number of servers that together offer a single service based on performance and redundancy.
The load is usually shared across all servers in a server farm and load balancer devices are used to distribute the load from the users to multiple servers. This operation is invisible to the end-user, as the load balancer balances the requests from the users to . . .
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