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    CHAPTER
                     NETWORKING PROTOCOLS                                                                       2

                                   Hey Techie, I want to understand             Topics Covered                      95%
                                   network protocols. How do                      Network Protocol
                                   computers know how to talk to                  Classification of Network Protocols

                                   each other?                                    Hypertext Transfer Protocol (HTTP)
                                                                                   Hypertext Transfer Protocol Secure
                                                                                   Transmission Control Protocol/Internet
                                                                                 Protocol

                     Shweta, computers follow special rules                       File Transfer Protocol
                                                                                  Simple Mail Transfer Protocol
                     called protocols. These rules make sure
                                                                                  Post Office Protocol Version 3
                     data is sent, received and understood                        Internet Message Access Protocol
                     correctly.

                                   So each protocol has a job?

                     Exactly. HTTP loads web pages, HTTPS keeps them secure, TCP/IP moves data in
                     packets and SMTP, POP3 and IMAP handle emails.

                                   That makes networks feel so organised. Everything works smoothly.

                     Yes, Shweta. Protocols  keep  communication  safe and reliable for  everyone.
                     Let’s learn more about it!

                                                                                                  Networking Protocols   23

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