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•  http://projects.bardok.net/educational-network-simulator/  to  get  a  grasp  of  basic  networking
                         concepts



























                   1.7 NETWORK PROTOCOLS
                 A network protocol is a set of rules that govern how data is exchanged between devices connected to the same
                 network. In essence, it enables connected devices to interact with one another despite variations in internal operations,
                 structure, or design. Network protocols are responsible for allowing you to interact with individuals all over the world,
                 and they play an important part in modern digital communications.
                 Network protocols enable devices to connect with each other by preset rules embedded into device software and
                 hardware, similar to how speaking the same language facilitates communication between two humans. Without the use
                 of network protocols, neither local area networks (LANs) nor wide area networks (WANs) could function as they do today.

                                                                   TCP

                                                 VOIP                                 IP


                                               IRC                                      PPP
                                                                 Network
                                                                 Protocols
                                              Telnet                                   HTTP


                                                 POP                                  FTP

                                                                  SMTP

                 Let us discuss some of the protocols in detail.

                 TCP/IP

                 TCP/IP  stands  for  Transmission  Control  Protocol/Internet  Protocol.  It  is  a  communication  protocol  suite  used  to
                 interconnect devices on the Internet. It can also used as a communication protocol in private networks like an intranet
                 or extranet.
                 TCP/IP is made up of two separate computer network protocols, TCP and IP. IP is used to determine the address to
                 which data should be sent, whereas TCP is in charge of data delivery once that IP address has been determined.

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