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Introduction To Computer Networks (Bbit 241) (Dbit 223) (Dcis 121) (Cisy 131) 1St Trimester 2015 Question Paper

Introduction To Computer Networks (Bbit 241) (Dbit 223) (Dcis 121) (Cisy 131) 1St Trimester 2015

Course:Bachelor Of Business Information Technology

Institution: Kenya Methodist University question papers

Exam Year:2015

Introduction to computer networks (BBIT 241) (DBIT 223) (DCIS 121) (CISY 131) 1ST TRIMESTER 2015
KENYA METHODIST UNIVERSITY

END OF 1'st 'TRIMESTER 2015 (FT) EXAMINATION

FACULTY : COMPUTING & INFORMATICS
DEPARTMENT : COMPUTER SCIENCE
UNIT CODE : BBIT 241/DBIT 223/DCIS 121/CISY 131
UNIT TITLE : INTRODUCTION TO COMPUTER NETWORKS
TIME : 2 HOURS

INSTRUCTIONS

Answer all questions in Section A and any Two in section B
SECTION A:

Question One

Describe the following terminologies as used in networking:
(10 Marks)
FDDI
CDDI
NIC
CSMA/CD
MODEM
To achieve communication between two remote computers, a complex set of rules is implemented. Sketch the seven layers ISO OSI model and briefly describe the role of each of the seven layers.
(15 marks)
Discuss the importance of standardization with respect to Networks. Provide one standardization body.
(5 marks)
SECTION B:

Question Two

Discuss five principal factors you should consider when selecting the type of media during the design of a computer network.
(5 marks)
Discuss using illustrations the LAN topologies. Provide a strength and a weakness for each topology identified.
(9 marks)
Describe in details how the multiple-access scheme of the Ethernet works.
(6 marks)

Question Three

Networks are very crucial infrastructure in an organization. Using an organization of your choice, discuss the advantages of using networks. Discuss five advantages.
(10 marks)
Using a relevant illustration, discuss the client/server relationship.
(5 marks)
Computers need to have IP addresses in order to allow access to shared resources. What is the relationship between a domain name and IP address? Illustrate your answer with relevant examples.
(5 marks)

Question Four

The internet is a blessing in disguise, discuss.
(5 marks)
Discuss any one sliding window techniques
(5 marks)
What is a network operating system? Discuss an example of NOS and describe how it works.
(5 marks)
Briefly discuss the operations of a packet and a circuit switched network.
(5 marks)

Introduction To Computer Networks (Bbit 241) (Dbit 223) (Dcis 121) (Cisy 131) 1St Trimester 2015 Question Paper

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