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GCE JAN 2010 : AS 1 Components of ICT - Revised

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Sp N ec e i w ca tio n Centre Number 71 Candidate Number Assessment Unit AS 1 assessing Module 1: Components of ICT [AW111] AW111 Information and Communication Technology *AW111* ADVANCED SUBSIDIARY (AS) General Certificate of Education January 2010 THURSDAY 14 JANUARY, AFTERNOON TIME 2 hours. INSTRUCTIONS TO CANDIDATES Write your Centre Number and Candidate Number in the spaces provided at the top of this page. Write your answers in the spaces provided in this question paper. Answer all five questions. For Examiner s use only INFORMATION FOR CANDIDATES The total mark for this paper is 120 marks including a maximum of 5 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. Question Marks Number 1 2 3 4 5 QWC Total Marks 5860 BLANK PAGE 5860 2 [Turn over 1 In a payroll system, each employee is allocated an EmployeeID as shown below. EmployeeID Green 1438 Remark EmployeeName 1435 Examiner Only Marks Brown (a) By referring to the above table, explain what is meant by: Data [2] Information [2] (b) The EmployeeID 1435 is keyed in as 1345. Name and explain the type of data entry error which has occurred. Error Explanation [2] 5860 3 [Turn over (c) Describe how each of the following could be used to validate an EmployeeID. Examiner Only Marks Remark Length check [2] Range check [2] Lookup table [3] (d) Describe how verification can be used to detect errors. [2] 5860 4 [Turn over (e) A modulus 11 check digit is calculated and placed at the end of the four-digit EmployeeID. Examiner Only Marks Remark Show how the check digit will be calculated from EmployeeID 1435. [4] (f) An employee complains that this week s payslip is inaccurate because the overtime hours have been added up incorrectly. Describe three other ways in which the quality of information might be unsatisfactory in this case. 1. 2. 3. [6] 5860 5 [Turn over 2 OMR is used to collect answers in a multiple choice examination. Examiner Only Marks Remark (a) Describe how data is captured using OMR. [4] (b) State two benefits of using OMR in this case. 1. 2. [2] 5860 6 [Turn over (c) The examination paper includes a photograph. Examiner Only Marks Remark The photograph was taken using a digital camera and transferred to a computer. (i) Describe two ways in which the photograph could be transferred to the computer. 1. 2. [4] (ii) Name and describe two file formats suitable for storing a photograph. Name _______________________________________________ Description [3] Name _______________________________________________ Description [3] 5860 7 [Turn over (d) The examination results are processed using batch processing. Examiner Only Marks Remark Describe the main features of batch processing. [4] 5860 8 [Turn over 3 A business operates from a single building which consists of an office and a number of meeting rooms. The computers in the office are networked. Examiner Only Marks Remark (a) Explain why a LAN is suitable in this case. [2] An additional computer is added to the network. (b) Explain how an additional computer can be added to A bus network [2] A star network [2] A ring network [2] 5860 9 [Turn over The business plans to extend the network to the meeting rooms using wireless technology. Examiner Only Marks Remark (c) Describe the main features of WiFi. [4] (d) Describe two benefits of a wireless network. 1. 2. [4] 5860 10 [Turn over TCP/IP is used when employees access the Internet. Examiner Only Marks Remark (e) Explain the role of each of the following when a file is downloaded. The TCP layer [3] The IP layer [3] (f) Explain how a proxy server could be used when employees access the Internet. [4] 5860 11 [Turn over 4 A smart card can be used to withdraw cash from an ATM. Examiner Only Marks Remark (a) Identify two examples of each of the following in this case. Input 1. 2. [2] Output 1. 2. [2] Processing 1. 2. [2] Storage 1. 2. [2] Feedback 1. 2. 5860 [2] 12 [Turn over Security is an important consideration when using on-line banking. Examiner Only Marks Remark (b) Describe two of the main security risks of using on-line banking. 1. 2. [4] (c) State four precautions which can be taken to minimise the security risks when using the Internet from home. 1. 2. 3. 4. 5860 [4] 13 [Turn over 5 A company s information system was custom built by a team of IT specialists. Examiner Only Marks Remark The specialists carried out fact finding and produced a feasibility study. (a) State one benefit and one drawback of each of the following methods of fact finding. Observation Benefit Drawback Questionnaire Benefit Drawback Interviews Benefit Drawback [6] 5860 14 [Turn over (b) Describe three factors which should be considered during a feasibility study. Examiner Only Marks Remark 1. 2. 3. _____________________________________________________ [6] Dataflow Diagrams (DFDs) were produced during the design of the information system. (c) Describe the purpose of a DFD. [2] 5860 15 [Turn over (d) The team which developed the system included programmers and technicians. Examiner Only Marks Remark Explain the role of A technician [4] A programmer [4] 5860 5860 16 [Turn over (e) Describe two changeover methods which could be used for a new information system. Examiner Only Marks Remark 1. 2. [4] Quality of Written Communication THIS IS THE END OF THE QUESTION PAPER 5860 17 5860

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Additional Info : Gce ICT January 2010 Assessment Unit AS 2, Module 2: Components of ICT - Revised
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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