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Ins 210: Data Communications Networks Question Paper

Ins 210: Data Communications Networks

Course:Bachelor Of Science In Information Sciences

Institution: Moi University question papers

Exam Year:2014

MOI UNIVERSITY
OFFICE OF THE CHIEF ACADEMIC OFFICER
UNIVERSITY EXAMINATIONS
2013/2014 ACADEMIC YEAR
SECOND YEAR SECOND SEMESTER EXAMINATION
FOR THE DEGREE OF
BACHELOR OF SCIENCE
IN
INFORMATION SCIENCES
COURSE CODE: INS 210
COURSE TITLE: DATA COMMUNICATION NETWORKS
DATE: 11TH SEPTEMBER, 2014 TIME: 9.00 A.M. –11.15 A.M.

INSTRUCTION TO CANDIDATES
• SEE INSIDE

THIS PAPER CONSISTS OF (2) PRINTED PAGES PLEASE TURN OVER
MOI UNIVERSITY
SCHOOL OF INFORMATION SCIENCES
DEPARTMENT OF INFORMATION TECHNOLOGY
SECOND SEMESTER 2013/2014 ACADEMIC YEAR EXAMINATIONS
COURSE CODE: INS 210
COURSE TITLE: DATA COMMUNICATION NETWORKS TIME: 2 Hrs 15 Mins
==============================================================================
INSTRUCTIONS TO CANDIDATES:
• Answer question 1 and any TWO questions

SECTION ONE
1.
a. State and explain the five components of data communications. [10 marks]
b. Describe using diagram the following network models:
i. Internet model [8 marks]
ii. OSI model [8 marks]
c. Explain the following types of errors in data communication:
i. Single-Bit error [2 marks]
ii. Burst Error [2 marks]
SECTION TWO
2.
a. What is transmission impairments? [2 marks]
b. Discuss any THREE factors that cause transmission impairments. [18 marks]
3.
a. Define multiplexing. [2 marks]
b. State and explain the THREE major multiplexing techniques in data communication.
[18 marks]
4. Discuss the following TWO broad categories of transmission media, giving examples:
a. Guided media [10 marks]
b. Unguided media [10 marks]
5. Analyze the following switching techniques used in data communication:
a. Packet switching [10 marks]
b. Circuit switching [10 marks]

Ins 210: Data Communications Networks Question Paper

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