CIT0104  INTRODUCTION TO INFORMATION SYSTEMS.

UNIVERSITY EXAMINATIONS: 2017/2018
ORDINARY EXAMINATION FOR THE CERTIFICATE INFORMATION
TECHNOLOGY
CIT 0104: INTRODUCTION TO INFORMATION SYSTEM &
CBIT 0100: INTRODUCTION TO COMPUTING
FULLTIME/PARTTIME
DATE: APRIL, 2018 TIME: 1 ½ HOURS
INSTRUCTIONS: Answer question ONE and any other TWO questions.

QUESTION ONE (30 MARKS) (Compulsory)
a) Discuss any three data security threats and how to control them. (3Marks)
b) Describe briefly the second generation of computer citing any technological advancement
realization. (4Marks)
c) Differentiate between the following terms used in computing: –
i. Analogue and digital computer
ii. Primary and secondary memory
iii. ROM and RAM (3Marks)
d) Explain any three types of information systems as found in an organization to support
management related support. (3Marks)
e) Give any four essential attributes of an operating system. (4Marks)
f) With an aid of a diagram explain the components of a central processing unit.
(8Marks)
g) Discuss any five factors that influence the performance of a computer. (5Marks)
QUESTION TWO
a) Convert the following number bases.
a) 110011102 divided by 110012
b) 2B116 convert to Octal
c) 001011.1010012 to base 16 Hexadecimal (3Marks)
b) Describe any four backup storage devices as used in Computer Information Systems.
(4Marks)
c) Explain any four ways in which Information Systems have transformed organization in
modern economy. (4Marks)
d) Explain the following terms in regard to the study of systems.
i. Emergent properties
ii. General Systems theory
iii. Control
iv. Synergy
v. Closed coop systems
(5Marks)
e) What are the advantages of outsourcing ICT services.
(4Marks)
QUESTION THREE
a) Explain the following types of network topologies with diagrams.
i) Star topology (3 Marks)
ii) Ring topology (3 Marks)
iii) Bus topology (3 Marks)
b) What is the importance of having a network in an organization? (3 Marks)
c) List any three characteristics of good word processing software. (3 Marks)
d) Describe any five internet connection options. (5 Marks)
QUESTION FOUR
a) Outline key features of the first four generations of computers. (4Marks)
b) Explain the following types of network.
i) Local Area Network (2 Marks)
ii) Metropolitan Area Network (2 Marks)
iii) Wide Area Network (2 Marks)
c) How would you recognize a computer that is infected by viruses? (5 Marks)
d) Discuss any five negative impacts of computers to the society. (5 Marks)
QUESTION FIVE
a) Highlight five different types of arithmetic operators in Excel. (5 Marks)
b) Give keyboard shortcut that will be used to achieve the following in word-processing.
i. Copy a selected text
ii. Paste the selected text
iii. Cut a selected text (3Marks)
c) Define the following features found in spreadsheets.
i. Sheet tab
ii. Formula bar
iii. Name box
(3Marks)
d) The internet is the largest network used to facilitate E-Business and E-Commerce. Explain the
challenges posed by the use of the internet.
(6Marks)
e) Explain the advantage of Database management software.
(3Marks)

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