Communication

Analog vs Digital Communication

Direction of communication

• Simplex
• Half-duplex
• Full-duplex

Request-response model

What is protocol?

OSI Model

Communication Mediums

Noise

Data Link Layer

MAC Protocol

Network Switch

IP Protocol

ARP Protocol

UDP Protocol

TCP Protocol

DNS Protocol

TLS Protocol

HTTP/1.0 Protocol

HTTP Request

HTTP Response

HTTP Status Codes

HTTP Methods

HTTP Headers

HTTP Cookies

HTTP Caching

HTTP Authentication

HTTP/1.1 Protocol

Short Polling

Long Polling

Server Sent Events

WebSockets

HTTP/2 Protocol

HTTP/3 Protocol