TCP IP

Question 1

Application layer

Answer 1

Selects and uses the correct protocol to transmit data. The user interacts with application software like a web browser

Question 2

Transport layer

Answer 2

Establishes a virtual path from sender to receiver (end-to-end connection).
Splits the data up into packets containing sequence number and port number (identifies protocol)

Question 3

Network Layer

Answer 3

Adds the IP addresses of the source and destination to the package

Question 4

Link layer

Answer 4

Controls the physical connections between pieces of hardware in the network.
Adds MAC addresses to the package to show which hardware it must go to next