Data Transmission Protocols

Data Transmission Protocols

1. Protocol

   • A rule or the official procedure.

2. Email

   • Sending a message from one computer to another, electronic mail.
   • SMTP
     • Transmits data between email servers.
     • Simple Mail Transfer Protocol
   • POP3
     • Post Office Protocol is the third version.
     • Used to download emails between the users and their mail servers.
   • IMAP
     • Internet Message Access Protocol
     • Is an alternative to POP3. it is synched between the client and your email server.

3. Voice & Video Calls over the Internet

   • Very popular for online communication, usually free.
   • SIP
     • Session Initiation Protocol
     • Establishes the connection between sender and receiver.
   • RTP
     • Is similar to SIP, however, instead of establishing the connection. This transmits the data packets along that connection.
     • Real-Time Transport ProtocoL
   • RTCP
     • Is the sister of RTP. This sends control packets that provide feedback on the quality of data delivery.
     • RTP control

4. Web pages

   • We use this daily in our personal lives to access information.
   • HTTP
     • HyperText Transfer Protocol
     • Has a connection between the client and server and then transfers web pages to the users so they display a web browser.
   • HTTPS
     • HTTP Secure
     • Transmits data in an encrypted format securely.

5. Secure Payment Systems

   • Ability to pay for goods online.
   • SET
     • When a purchase starts only the purchase order is sent to the webs with the card details and instead goes to the merchant's bank.
   • 3D Secure
     • User submits their card details for payment the card will enroll on 3D Secure.
     • Most popular method for online payment.