Protocols

Protocols

1. Ethernet

   • Wired protocol used for communication.

2. Wi-Fi

   • a suite of protocols for wireless communication

3. HTTP

   • Hypertext Transfer Protocol. For requesting and retrieving web pages

4. HTTPS

   •  an encrypted version of HTTP for secure web pages. 

5. POP3

   • Post Office Protocol 3 for retrieving emails from a server

6. SMTP

   • Simple Mail Transfer Protocol 

7. IMAP

   •  Internet Message Access Protocol transfers emails between computer systems via the internet. A replacement for POP3. 

8. Layers

   • -Application layer: The application layer is the group of applications requiring network communications -Transport layer: The transport layer establishes the connection between applications on different hosts -Network layer: The network layer is responsible for creating the frames that move across the network -Data link layer: The data link layer is responsible for creating the frames that move across the network -Physical layer: The physical layer is the transceiver that drives the signals on the network.

9. IP address

   • IP a 32 bit number assigned to each computer on a TCP/IP network. Usually represented as a 4 decimal number between 0 and 225.