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Write a brief note on each of the following.
FTP: File Transfer Protocol: This protocol is used to upload and download the files on remote computers.
Telnet: FTP permits file operations only although Telnet can log on to a computer of other users by TCP/IP network and use such as a local user, it help within testing of remote web server.
Instant Messaging: This is the service of messaging given on the internet such as MSN messenger, Yahoo messenger, by that we interact people randomly whenever needed.
VoIP: Voice over IP and It is used to transmit the voice from one IP to another IP, In that voice is first broken down and then transmitted over a network.
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