Answer it
P1 a2 tcpip layers
3 marksYou mark it yourself against the marking points
The TCP/IP model describes network communication as four layers.
(a) State the names of the four layers, in order from the top. [1]
(b) State the layer that adds port numbers, so the data reaches the right program on the destination computer. [1]
(c) State the layer that is responsible for routing packets between networks using logical addresses. [1]
[3]