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    Different types of protocols used for different operations on the Internet are as follows:
                          HTTP - Hyper Text Transfer Protocol: It is a set of rules that defines how the Web pages transfer
                        information like document, file, image, video between computers over Internet.

                          HTTPS  -  Hyper Text Transfer  Protocol  Secure: It is secure  version of HTTP.  The  information  is
                        converted into code to prevent unauthorised access. Nowadays, most of the websites uses the
                        HTTPS protocol instead of HTTP.
                          FTP - File Transfer Protocol: It is a set of rules that allows file uploading and downloading from the
                        other computers over the Internet.
                          TCP/IP - Transmission Control Protocol/Internet Protocol: It is a network protocol that defines
                        how the information or messages are routed from one end of a network to the other.

                          POP3 - Post Office Protocol Version 3: It is an Internet standard protocol that allows e-mail clients
                        to retrieve e-mail messages from an e-mail server.
                          IMAP - Internet Message Access Protocol: It is an e-mail protocol that stores e-mail messages on
                        a mail server and allows the user to view, access and manipulate the messages on the mail server
                        from their computer.
                          SMTP - Simple Mail Transfer Protocol: It is an e-mail protocol for sending e-mail messages across
                        the Internet.

                                   Let’s CatCh uP

                              Write the full forms of the following:
                              1.  HTTPS-    ________________________________________________________

                              2.  IMAP-     ________________________________________________________
                              3.  FTP-      ________________________________________________________

                              4.  TCP/IP-    ________________________________________________________

                                 Let’s BaCk-uP

                            The computer network means the system of interconnected computers.
                             The components needed for a network are Network Interface Card, hub or a switch, router,
                            modem, networking cable and gateway.
                            The different types of networks are PAN, CAN, LAN, MAN and WAN.
                             Various types of topologies used in a network are bus, star, tree, ring and mesh.
                              There are two types of computer network architectures—peer-to-peer network and client-
                            server network.
                              In a wireless  networking  technology,  no  wires  or  physical  media  is  used  for connecting
                            computers.
                             Protocol is a set of rules that governs the communication between the computers over a
                            network.

                      16    Premium Edition-VIII

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