TCP/IP layers

Question 1

what are the 4 layers

Answer 1

application layer
transport layer
network layer
link layer

Question 2

what is the application layer

Answer 2

specifies what protocol needs to be used in order to relate to the apllication being sent

Question 3

what is transport layer

Answer 3

uses TCP to establish an end to end connection between the source and recipient computer , splits up data into packets ,if any are lost then requests retransmissions of these lost packets

Question 4

what is the network layer

Answer 4

adds the source and destinations ip addresses

Question 5

what is the link layer

Answer 5

the connetion between the network devices.