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GCE JAN 2007 : A2 1 Development of Information Systems

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ADVANCED General Certificate of Education January 2007 Information and Communication Technology assessing Module 4: Development of Information Systems A2W11 Assessment Unit A2 1 [A2W11] TUESDAY 9 JANUARY, MORNING TIME 1 hour 30 minutes. INSTRUCTIONS TO CANDIDATES Write your Centre Number and Candidate Number on the Answer Booklet provided. Answer all seven questions. INFORMATION FOR CANDIDATES The total mark for this paper is 90, including a maximum of 4 marks for quality of written communication. Figures in brackets printed down the right-hand side of pages indicate the marks awarded to each question or part question. A2W1W7 2922 Answer all seven questions. 1 Fibre optic cable can be used when data is transmitted over a network. (a) Identify two other types of data transmission media. (b) Describe four features of fibre optic cable which make it suitable for data transmission. [8] (c) Identify two drawbacks of using fibre optic cable for data transmission. 2 [2] [2] A company makes gas fires. Each fire contains a number of components which must be tested. The test log is stored in a normalised database. (a) State the purpose of data normalisation. [2] (b) Explain how normalisation is carried out. [6] (c) The test log is shown below. Product ID WG3 Product Name WarmGlow III DH1 DeluxHeater FS2 FireSide II Component ID 012 017 045 017 012 045 017 Component Name Pressure Switch Inlet Pipe Ignition Switch Inlet Pipe Pressure Switch Ignition Switch Inlet Pipe Tester s Name Normalise the data in this table to 3NF showing all your work. 3 Dunne Reddie Oakie Reddie Dunne Oakie Reddie Test Result Failed Passed Passed Passed Failed Passed Failed [6] CASE tools may be used during software development. (a) Describe two features of a graphics CASE tool. [4] (b) Explain how a project management CASE tool could be used. [4] (c) Describe three other CASE tools. [6] A2W1W7 2922 2 4 In a hospital, nurses are authorised to view patients records, while doctors can also amend the records. (a) (i) Identify the access levels required by each of these members of staff. (ii) Identify two other levels of access. [2] [2] (b) Describe how access levels are implemented. (c) Identify three audit trails that could be used on a network and state how each could be used. 5 [3] [6] Software may be developed using prototyping or the waterfall model. (a) Describe the role of the end user when prototyping is used. [4] In the waterfall model, the end user is involved in fact finding and in testing. (b) Identify four methods of fact finding. (c) Describe two ways in which the end user may be involved in testing. 6 [4] [4] A company plans to upgrade its software. (a) Describe three reasons why the software might need to be upgraded. (b) Describe three ways in which the upgraded user interface could minimise the need for user training. 7 [6] [6] Describe the main features of each of the following protocols for data transmission. (a) Token ring (b) CSMA/CD (c) TCP/IP A2W1W7 2922 [9] 3 S 11/06 2200 9-062-1 [Turn over

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Additional Info : Gce ICT January 2007 Assessment Unit A2 1, Module 4: Development of Information Systems
Tags : General Certificate of Education, A Level and AS Level, uk, council for the curriculum examinations and assessment, gce exam papers, gce a level and as level exam papers , gce past questions and answer, gce past question papers, ccea gce past papers, gce ccea past papers

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