Please answer the questions bellow accordingly

NUMBER FOUR (a) Although computer systems should be designed to ensure accurate data processing, an auditor is likely to make use of one or more computer-based techniques in order to check that accuracy. Describe any three techniques available to the auditor and the situations where each might be used (9marks) (b) Why are tools such as data flow diagrams (DFD), entity relationship diagrams (ERD) and flowcharts particularly suited for documenting design options of an information system compared to narrative texts'? (6 marks) (c) List five questions which need to be addressed when evaluating the strategic value of Information Technology. (5 marks)NUMBER FIVE (a) You have been appointed to be in charge of an information systems development project. As a project leader, explain how you would ensure that the project succeeds. (8 marks) (b) Giving reasons, identify four situations where communication over wireless medium for instance radio and mobilephones may be preferable to guided communication (over cable). (8 marks) (c) Select two facilities usually found in fourth generation languages (4GLs) and explain their application in developing a prototype. (4 marks) (Total: 20 marks) NUMBER SIX (a) Discuss any four types of feasibility assessment that you need to perform to enable you recommend the undertaking of a given project. (4 marks) (b) Discuss how virtual memory concept is implemented indicating its key objective. (6 marks) (c) Do you consider it justifiable to argue that computers actually result in job losses? Support your answer with well articulated facts. (10 marks)In a mixed economy, two of the objectives of a government could be; (a) To minimise its borrowing requirements; and (b) To reduce the taxation of incomes, Required (a) Identify the general economic effects of these policies on private sector businesses. (b) Discuss what particular effects might result from attempts to achieve these objectives by ead of: ( Reductions in public expenditure; (uj Increases in charges made for the products or services of nationalised industries; (tii) Selling nationalised assets