OSI model

layer 7

application

layer 6

presentation

layer 5

session

layer 4

transport

layer 3

network

layer 2

data link

layer 1

physical

Application

(7) user interacts directly

presentation

encrypts, decrypts, formats

session

connects, disconnects

transport

data transmission via segments

network

routes data between networks via packets, uses IP ADDRESSES

Data link

sends FRAMES to device on SAME network uses MAC address

physical

0101010 BITS

examples of application

HTTPS/HTTPe

examples of presentation

web browsers, media players, vpn

ex of transport

computers

ex of network

router

ex of data link

switch, Network interface card 

ex of physical

ethernet cable, wifi signals, fiber optic, hub

TCP/IP layer 1

application. it is application, presentation, session combined

TCP/IP layer 2

transport. it is same as osi

tcp/ip layer 3

network. same as osi

tcp/ip layer 4

network interface. is data link and physical combined.

TCP/IP transport is also called

host to host

TCP/IP network is also called

internet

Tcp/ip network interface is also called

network access