UNIVERSITY EXAMINATIONS: 2017/2018
EXAMINATION FOR THE DEGREE OF BACHELOR OF SCIENCE IN
INFORMATION TECHNOLOGY
BIT 1102A INTERNET TECHNOLOGY
FULL TIME/PART TIME/ DISTANCE LEARNING
DATE: DECEMBER, 2017 TIME: 2 HOURS
INSTRUCTIONS: Answer Question One & ANY OTHER TWO questions.
QUESTION ONE (Compulsory)
a) Using an example describe full-duplex and half-duplex communication (4Marks)
b) Explaining their roles differentiate between ARP and RARP (4 Marks)
c) Briefly explain atleast three effective methods of conducting internet research
(3 Marks)
d) Explain why two different search engines may provide different results when provided
with the same search term. (3Marks)
e) Explain how a web search engine builds its database and resolves a query. (4Marks)
f) Describe the concept of leeching and seeding when using torrents (4 Marks)
g) Distinguish between an email address and the URL and give examples of each
(4 Marks)
h) Explain the meaning of a Handshaking protocol (4 Marks)
QUESTION TWO
a) Explain five functions which the processes running on the intermediary network devices
perform (10 Marks)
b) The Internet Society (ISOC) is an international, non-profit organization founded in 1992
to provide leadership in internet. Describe at least four of its roles (8 Marks)
c) Describe the criteria used when choosing a network media for a network (2 Marks)
QUESTION THREE
a) Describe the roles of the following in a network (6 Marks)
i) Router
ii) Switch
iii) Proxy Server
b) Three essential components of the World Wide Web are; Browsers, Websites and Web
Pages. For each of the three components describe what they are and their function.
(9 Marks)
c) How does packet switching differ from circuit switching (5 Marks)
QUESTION FOUR
a) Describe how the internet works (8 Marks)
b) Read the following html code and explain the purposes of each tag (10 Marks)
<!DOCTYPE html>
<html>
<head>
<title>My First Webpage</title>
</head>
<body>
<h1 align=”center”>My First Webpage</h1>
<p>Welcome to my first web page. I am writing this page using a text editor
and plain old html.</p>
<p>By learning html, I’ll be able to create web pages like a pro….<br>
which I am of course.</p>
</body>
</html>
c) Describe the term loopback address (2 Marks)
QUESTION FIVE
a) Explain the principles of internetting (4 Marks)
b) It is said that UDP is a connectionless protocol. Explain. (4 Marks)
c) Lists examples of the protocols that use TCP (4 Marks)
d) Differentiate between IPv4 and IPv6 Addresses (4 Marks)
e) Briefly trace the history of the internet. (4 Marks)
