Networks 511 Assignment Answers
QUESTION ONE [45 MARKS]
1.1 What do you understand by CSMA/CD protocol? Briefly explain its working. (5)
1.2 Explain the important characteristics of the following types of cables. Also, mention one
application in which they are used: (10)
1.2.1 Coaxial Cable
1.2.2 Twisted pair cable
1.2.3 Optical fiber cable
1.3 Explain the functioning of user datagram protocol (UDP). Mention at least one application that
is based on UDP protocol. (10)
1.4 Give some advantages and disadvantages of combining the session, presentation, and application layer in OSI model into one single application layer in the internet model. (20)
QUESTION TWO [45 MARKS]
Study the Table below and fill in the columns referring to the OSI model.
Layer
Protocol
What does the layer do
Which hardware used
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