NRS1 Module 1

Question 1

What are the advantages of protocol layering?

Answer 1

Protocol layering provides a way to simplify a complex problem by dividing it into a number of smaller functions. Each layerperforms a specific function

Question 2

What are the four layers of technology used in the TCP/IP protocol suite?

Answer 2

Application layer, transport layer, Internet layer, and link layer.

Question 3

What is data encapsulation?

Answer 3

Data encapsulation is the mechanism by which each layer in the protocol stack adds information to the applicationgenerated data. That information is intended to be interpreted by an entity of the same layer in a remote device, in such away that the data is properly processed and delivered to the intended receiver and to the right application.