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Bbit 241/Cisy 131: Introduction To Computer Networks Question Paper

Bbit 241/Cisy 131: Introduction To Computer Networks

Course:Computer Science And Business Information

Institution: Kenya Methodist University question papers

Exam Year:2012

KENYA METHODIST UNIVERSITY
END OF 3''RD ''TRIMESTER 2012 (EVENING) EXAMINATIONS
FACULTY : COMPUTING AND INFORMATICS
DEPARTMENT : COMPUTER SCIENCE AND BUSINESS
INFORMATION
UNIT CODE : BBIT 241/CISY 131
UNIT TITLE : INTRODUCTION TO COMPUTER NETWORKS
TIME : 2 hours

Instructions:
Answer question one and any other two.
Question One
What are some of the advantages of computer networking?
(3 marks)
Highlight source of the functions of the layers of the OSI model.

(7 marks)
Explain the role of the following networking protocols found in layer (4) transport layer.
(8 marks)
Highlight the elements of computer networking.
(4 marks)
Explain the purpose of these devices
Gateway
Switch
Routea
Hub
(4 marks)
Question Two
Describe the following media used in computer networks.
Coaxial
Microwave
Infra Red
Shielded Twisted Pair
(8 marks)
Draw the TCP/IP protocol suite illustrating:
The Layers
The functions of each layer
The protocols in each layer.
(12 marks)
Question Three
What are strengths of the logical topologies identify three.
(9 marks)
Describe strengths of three (3) physical topologies.
(9 marks)
What is the role of a gateway?
(2 marks)
Question Four
Explain the main differences between circuit switching, packet switching and message switching.
(9 marks)
Describe the standard setting process.
(3 marks)
Compare the OSI model and the TCP/IP protocol suite.
(8 marks)

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