This video explains different Network Protocols which are used.

00:00 Network Protocols in Hindi
01:34 Ethernet Protocol
02:30 Point-to-Point (PPP) Protocol
03:13 TCP/IP Protocol
03:52 Transmission control Protocol - TCP
04:25 Internet Protocol - IP
04:58 User Datagram Protocol - UDP
05:17 File Transfer Protocol - FTP
05:54 Hyper text Transfer Protocol - HTTP
07:41 Hyper text Transfer Protocol Secure - HTTPS
08:44 Secure Socket Layer - SSL
09:33 Telnet Protocol
10:33 Email Protocols
10:39 Post Office Protocol - POP3
11:57 Internet Message Access Protocol - IMAP
13:02 Simple Mail Transfer Protocol - SMTP