Clients and Servers on Separate Hosts
This is the commonly understood meaning of client/server computing where the server resides on one host system and clients can reside on one or multiple additional computer systems. If all of the clients connect to the same server, this is known as a two-tier architecture. If there are multiple servers that do different types of work and can each one can connect to multiple clients, this is known as a multi-tier architecture. A common type of three-tier architecture (a subset of multi-tier) is a case in which one server holds data, one holds business rules, and the clients connect transparently to both servers. These types of connections are referred to a remote connections.
There are two network protocols ...
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