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Comp 0261: E-Systems Question Paper

Comp 0261: E-Systems

Course:Diploma In Computer Science

Institution: Chuka University question papers

Exam Year:2012

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CHUKA UNIVERSITY
COLLEGE
UNIVERSITY EXAMINATIONS
SECOND YEAR EXAMINATION FOR THE AWARD OF
DIPLOMA IN COMPUTER SCIENCE
COMP 0261: E-SYSTEMS
STREAMS: DIP (COMP SCI) TIME: 2 HOURS
DAY/DATE: WEDNESDAY 8/8/2012 11.30 A.M. - 1.30 P.M.
INSTRUCTIONS:
Answer question one (compulsory) and any other two questions.
Question One (30 Marks)
(a) Define the following terms as applied to e-commerce systems.
(i) Cookies
(ii) Digital Certificate
(iii) Ad Clicks
(iv) Hit [8 marks]
(b) Explain the two broad types of transactions. [4 marks]
(c) What is electronic data interchange? [2 marks]
(d) The wireless Application Protocol is the worldwide standard for providing Internet
communications and advanced services on digital mobile devices; using a well labeled
diagram illustrate the Wireless Application Protocol programming model. [6 marks]
(e) Briefly describe the electronic market system. [4 marks]
(f) Explain any three e-government issues. [6 marks]
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Question Two [20 Marks]
(a) What is a transaction processing system? [2 marks]
(b) In order for a system to qualify as a Transaction Processing System, transactions made by
the system must pass the ACID test. Explain the four ACID tests prerequisites.
[8 marks]
(c) List any five components of a transaction processing system. [5 marks]
(d) In a Transaction Processing System, there are 5 different types of files. The Transaction
Processing System uses the files to store and organize its transaction data. Identify five of
these files. [5 marks]
Question Three [20 Marks]
(a) Explain any five E-commerce technology options. [10 marks]
(b) Explain the four types of E-commerce. [8 marks]
(c) Identify any two benefits of e-commerce to the consumer. [2 marks]
Question Four [20 Marks]
(a) Explain any three electronic payment systems. [6 marks]
(b) Discuss any four application areas of smart cards. [8 marks]
(c) Explain any three bandwidth management techniques. [6 marks]
Question Five [20 Marks]
(a) (i) Using an example explain the concept of mobile commerce. [3 marks]
(ii) Explains five features of mobile commerce. [10 marks]
(b) The Wireless session protocol defines the Wireless application protocol session layer.
Explain the two functions of wireless session protocol. [4 marks]
(c) Briefly explain the motivation towards the establishment of intelligent supply chains.
[3 marks]
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Comp 0261: E-Systems Question Paper

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