What is Protocol?
PROTOCOL
A standard way of communicating across a network or internet. A protocol like “language” of computer network. A method by which two difference systems can communicate together.
What are Protocol functions?
- Handshaking
- Type of error checking
- Data Compression Method
- How to format a message
- How to indicate that it has finished sending / receiving a message
- Termination of the session or connection
Common Protocols
- TCP/IP (Transmission Control Protocol / Internet Protocol)
- HTTP (Hypertext Transfer Protocol)
- FTP (File Transfer Protocol)
- DHCP (Dynamic Host Configuration Protocol)
- TELNET (Telnet Remote Protocol)
- POP3 (Post Office Protocol 3)
- SMTP (Simple Mail Transfer Protocol)
- IMAP (Internet Message Access Protocol)
What is TCP/IP?
TCP: Transmission Control Protocol
is responsible for verifying correct delivery of data from client to server, will support if dedect errors or lost date by retransmission until completely received.
IP: Internet Protocol
is responsible for moving packet of data from node to node based on a four byte destination address (IP Adress Number: Sample IP address 69.93.151.74)
TCP/IP is a set of protocols developed to allow cooperating computers to share resources across a network, TCP and IP are commonly used together, however TCP/IP had become standard of protocols for internet
Noted: The biggest Network in the world is “Internet” (Network of Netwok)
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