UNIVERSITY EXAMINATIONS: 2016/2017
EXAMINATION FOR THE DEGREES OF BACHELOR OF SCIENCE IN
INFORMATION TECHNOLOGY/ APLIED COMPUTING/BUSINESS
INFORMATION TECHNOLOGY
BIT1302A BUSS208 BAC2105 E COMMERCE
FULLTIME/ PART TIME
SUPPLEMENTARY/ SPECIAL EXAMINATIONS
DATE: JULY, 2017 TIME: 2 HOURS
INSTRUCTIONS: Answer Question One & ANY OTHER TWO questions.
QUESTION ONE [30 MARKS]
a) C2C models have become popular in electronic commerce. Describe a typical C2C model
and cite ONE example (4 Marks)
b) Using an appropriate diagram, describe the process of information flow that involves
electronic data interchange (12 Marks)
c) Describe the following modes of e-payment giving TWO advantages and two
disadvantages for each.
i) Credit card
ii) Electronic cash (8 Marks)
d) A B2B company has found that after an initial surge of interest in its intranet and extranet,
usage has declined dramatically. The e-business manager wants to achieve these aims:
Increase usage
Produce more dynamic content
Encouraging more clients to order (extranet).
What recommendations would you give for achieving these aims? (6 Marks)
QUESTION TWO [20 MARKS]
a) Describe the following e-commerce terms:
i) Value chain (2 Marks)
ii) Value added network (2 Marks)
b) A number of layers cooperate in the e-commerce architectural framework to provide a
seamless transition between today’s computing resources and those of tomorrow by
transparently integrating information access and exchange within the context of the chosen
application. Describe the roles of the following such layers:
i) Interface and support services layer
ii) Middleware services layer
iii) Information brokerage and management (6 Marks)
c) Discuss FIVE factors that must be considered in the design of an e-payment system
(10 Marks)
QUESTION THREE [20 MARKS]
a) Digital tokens constitute a major proportion of electronic payments.
i) What are digital tokens? (2 Marks)
ii) Distinguish between connected and disconnected digital tokens (4 Marks)
b) Describe the process of purchasing e-cash from currency servers (6 Marks)
c) Explain FOUR elementary properties of electronic payment systems (8 Marks)
QUESTION FOUR [20 MARKS]
a) i) What is EDI? (2 Marks)
ii) Discuss the FOUR layers of the EDI architectural framework (8 Marks)
b) Discuss the technical limitations of electronic commerce (10 Marks)
QUESTION FIVE [20 MARKS]
a) Cookies help to maintain the browser state. Cite reasons that make it necessary to maintain
this state (6 Marks)
b) The trade cycle in e-commerce varies depending on the nature of the parties to the
transaction, the frequency of trade exchanges and the nature of the goods or services being
exchanged. Identify and briefly explain the THREE generic trade cycles (6 Marks)
c) Define the term “business process” and evaluate the appropriateness of electronic technology
on business processes (8 Marks)
