UNIVERSITY EXAMINATIONS: 2016/2017
EXAMINATION FOR THE CERTIFICATE IN INFORMATION
TECHNOLOGY/ CERTIFICATE IN BUSINESS INFORMATION
TECHNOLOGY
CIT0103 CBIT0103 INTERNET AND THE WEB
DATE: AUGUST, 2017 TIME: 2 HOURS
INSTRUCTIONS: Answer question ONE and any other TWO questions
QUESTION ONE (COMPULSORY: 30 MARKS)
a). What is your understanding of the following terminology? [6 Marks]
i). Network
ii). LAN
iii).WAN
iv).Internet
v). World Wide Web
vi).E-Commerce
b). Differentiate between intranet and extranet, and highlight two advantages for each of these
types of networks. [6 Marks]
c). Computer networks have become prone to so many security threats because of the key role
they play in ensuring quick sharing of information. Discuss three security threats that are
common in a typical computer network environment. [6 Marks]
d). Explain your understanding of network topology and using well labeled diagrams, illustrate
any two network topologies of your choice. [6 Marks]
e). Define protocols as referred to in computer networks. [2 Marks]
f). Clearly differentiate between HTTPS and SMTP protocols. [4 Marks]
QUESTION TWO (20 MARKS)
a). What do you understand by ISP in the context of the internet? [2 Marks]
b). Explain four key requirements for connecting to the internet. [8 Marks]
c). Discuss five key services provided by the internet. [10 Marks]
QUESTION THREE (20 MARKS)
a). Describe the following concepts and give at least one relevant example for each. [10 Marks]
i). URL
ii). Browser
iii).Blog
iv).Web-server
v). Domain name
b). E-mails have become the most common tool for communication in today’s organization.
i). Describe your understanding of E-mail. [2 Marks]
ii). Describe the various components of an email address. [4 Marks]
iii).What are some of the advantages that emails have over the traditional methods of
communication? [4 Marks]
QUESTION FOUR (20 MARKS)
a). What is your understanding of the OSI Model in computer networks? [2 Marks]
b). Describe using a diagram the 7 layers of the OSI Model. [8 Marks]
c). Discuss five key advantages of E-Commerce over the traditional retail services. [10 Marks]
QUESTION FIVE (20 MARKS)
a). In today’s business world, every reputable organization has moved to develop websites for
various reasons.
i). Explain your understanding of a website. [2 Marks]
ii). Discuss four key ways in which a website is of advantage to an organization that has one.
[8 Marks]
b). Use a diagram to illustrate and briefly discuss the information security (CIA) triad. [7 Marks]
c). TCP is a connection oriented protocol. Explain your understanding of TCP and what is meant
by a connection-oriented service. [3 Marks]
