KNEC diploma in ICT module 2: System Analysis and Design past paper July 2017 Answers

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Course Name:  Information and Communication Technology
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Course Level:  Diploma
Sub Level:       Module II
Course Unit:   System Analysis and Design
Exam body:    KNEC
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Outline the two desirable qualities of a good program code design ()

Outline three reasons that could influence a system designer to use a functional decomposition ()

State two skills expected of a system analyst ()

Differentiate between black-box and grey- box testing methods ()

Clifford intend to use system flow chart to analyze a proposed information system. Outline three symbol that he is likely to use in the chart ()

Irene was required to carry out training on a new system without interfering with the normal operation on the organization. (i) Explain the most appropriate training method he could use ii)Explain two challenges she could experience while using the training method identified in (i). ()

Differentiate between investigation and fact recording as used in feasibility studies ()

Use case diagrams are popular in system analysis. Describe three advantages of the tool that could be influencing this trend ()

Paul wants to use a data dictionary to analyze a proposed information system. Outline four components of this tool ()

10.

A lecturer described roles of system documentation to a SAD class. Describe three roles that he could have mentioned ()

11.

Define the term Net Present Value (NPV) as used in project evaluation ()

12.

Explain two factors that should be considered when creating terms-of-reference during problem identification ()

13.

Petro would like to design a deterministic system for final year project. Explain two typical characteristics that could be exhibited by this type of a system ()

14.

Differentiate between risks and uncertainty as used in project management ()

15.

Tom intends to test a system with modules that were developed and tested separately. (i) Explain the most appropriate testing method that he could use to achieve his goals ii)Explain two methods of carrying out the testing method identified in (i). ()

16.

Describe an expert system as used in information systems ()

17.

State two qualities of a good input form ()

18.

Outline two roles of a super user in an information system ()

19.

Differentiate between face-to-face interview and telephone interview ()

20.

Dorothy intends to use an open loop control system in a proposed system. Outline four attributes of this loop that could be exhibited in the system ()

21.

An organization intends to procure a management information system. Explain three roles of this type of information system ()

22.

Outline two signs of system obsolescence ()

23.

Explain two reasons for replenishing resources in a project ()

24.

True-life company LTD intend to install a new information to replace their entire legacy system as a matter of urgency. Assume you are hired as a system analyst: (i) Identify the most appropriate change over strategy that you could use justifying your answer ii)Explain two possible risks that the company would realize while using the changeover strategy identified in (i). ()

25.

Outline three disadvantages of using waterfall model in system development ()

26.

Describe structured English as used in system design ()

27.

Outline three signs of derailing projects ()

28.

Julie was required to implement various keys in proposed database system. Explain three types of keys that she could have selected. ()

29.

Outline two applications of cloud computing in systems analysis and design ()

30.

With the aid of a symbol, outline each of the following types of nodes in a decision tree; i)chance/event; ii)terminal/edge; (iii)Decision. ()

31.

System project is susceptible to several types of risks. Explain two types of risks that are likely to be experienced ()

32.

An information system project has stakeholder who should do a follow up for its success. Explain four example of such stakeholders ()

33.

Explain two types of system document that could be found in a system development life cycle ()

34.

Explain the term perpetual license as applied in software acquisition ()

35.

S&S company ltd intends to redesign the input form for its information system to allow user capture data easily. (i) Assume that you are hired as consultant; describe the type of maintenance that you would recommend (ii) Explain two precautions that should be considered while using the maintenance method identified in (i). ()