QUESTION 19

1. a. Explain the process of line coding ( digital to digital conversion) scheme (3 marks)

   b. List the different line coding scheme used in communication. ( 2 marks )

QUESTION 18

1. a. Observe the Figure Q2.1, identify the type of signal conversion. ( 2. 5 marks )

   b. Write the binary representation for the given signal ( 0.5 marks )

   c. What is W, X, Y & Z represented in the Figure Q2.1? ( 2 marks )

QUESTION 17

QUESTION 17

1. Observe the diagram and answer the following: (5 Marks).

   

2. a. Identify the type of network architecture: ______________ ( 1 mark )

   b. Name any FOUR services which can be used in this architecture ( 4 marks )

QUESTION 16

1. Assume you are working as a network administrator for an organization and it has 15 employees working in different departments. All the employees are requesting for an individual printer for their computer. As a network administrator, answer the following questions in your own words;

   a. What would you suggest to the top-level management to solve this problem? ( 1 mark )

   b. Write any TWO advantages of your solution. ( 2 marks )

QUESTION 15

1. List out any three pros and cons of the slotted Aloha protocol

X o w Z I T T Generated bmary data Figure Q2.1 Server Client Client