3.1.3

Question 1

How many layers does the OSI model have, and what are they?

Answer 1

The OSI model has seven layers:

Application Layer
Presentation Layer
Session Layer
Transport Layer
Network Layer
Data Link Layer
Physical Layer

Question 2

What’s the role of the TCP model?

Answer 2

Communication between devices

Question 3

What are the 4 layers of the TCP model?

Answer 3

Application Layer
Transport Layer
Internet Layer
Network Access Layer

Question 4

Describe how communication over
networks is broken down into different
layers.

Answer 4

(try to explain how each layer works or the function of each layer)