osi model

OSI model

framework that describes how networking systems communicate and send data

7- application layer

human computer interaction layer where applications can access network services

6- Presentation Layer

ensures data is in a usable format and is where data encryption occurs

5- session layer

maintains connections and is responsible for controlling ports and sessions

4- Transport layer

Transmits data using transmission protocols including TCP and UDP

3- Network Layer

decides which physical path the data will take (routing)

2- Data Link Layer

Defines the format of data on the network

1- physical layer

Transmits raw bit steam over the physical medium

application, presentation, and session

data protocol

what protocol is Transport

segment protocol

what protocol is network

packet protocol

what protocol is data link

frame protocol

what protocol is physical

bits protocol