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Introduction To Computer Networks (Cisy 131) (Bbit 241) 3Rd Trimester 2014 Question Paper

Introduction To Computer Networks (Cisy 131) (Bbit 241) 3Rd Trimester 2014

Course:Bachelor Of Business Information Technology

Institution: Kenya Methodist University question papers

Exam Year:2014

INTRODUCTION TO COMPUTER NETWORKS (CISY 131) (BBIT 241) 3RD TRIMESTER 2014
KENYA METHODIST UNIVERSITY

END OF 3'rd 'TRIMESTER 2014 (FT) EXAMINATION

FACULTY : COMPUTING & INFORMATICS
DEPARTMENT : COMPUTER SCIENCE AND BUSINESS
INFORMATION
UNIT CODE : CISY 131/BBIT 241
UNIT TITLE : INTRODUCTION TO COMPUTER NETWORKS
TIME : 2 HOURS

INSTRUCTIONS

Answer question one and any other two questions

Question One (30 marks)

Briefly describe the following terms as used with computer networks;
Network service
Network protocol
Client/server network
Transmission medium
Flow control
(10 marks)
Briefly describe the relationship between network services, protocols and standards.
(3 marks)
In network communication, every message has a header and/or trailer. While using an appropriate example to illustrate, describe the role played by headers and trailers in network communication.
(6 Marks)
With the help of a diagram, describe the structure of the THICKNET coaxial cable.
(6 marks)
State five bodies that deal with network standardization at the international level.
(5 Marks)

Question Two (20 marks)

With the help of diagram, describe the TCP/IP model for network communication and how it differs from the ISO/OSI model.
(10 Marks)
Distinguish between logical topology and physical topology.
(2 Marks)
State and briefly describe four wireless transmission media.
(8 marks)

Question Three (20 marks)

State and briefly describe five network interconnection devices.
(10 marks)
With the help of a diagram, describe the TCP/IP connection establishment process.
(10 marks)

Question four (20 marks)

Give two advantages and one disadvantage of using fibre optic transmission medium.
(3 marks)
Using a diagram to illustrate, describe the four fields of the UDP header.
(8 marks)
The IP address in version 4 is divided into two parts;
State and briefly describe these two parts.
(4 marks)
On the basis of the parts mentioned in (i) above, differentiate the five IP address classes.
(5 Marks)

Introduction To Computer Networks (Cisy 131) (Bbit 241) 3Rd Trimester 2014 Question Paper

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