UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education
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*2907193166*
COMPUTER STUDIES Paper 1
0420/13
May/June 2012 2 hours 30 minutes
Candidates answer on the Question Paper. No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write your Centre number, candidate number and name on all the work you hand in. Write in dark blue or black pen. You may use a soft pencil for any diagrams, graphs or rough working. Do not use staples, paper clips, highlighters, glue or correction fluid. DO NOT WRITE IN ANY BARCODES. Answer all questions. No marks will be awarded for using brand names of software packages or hardware. At the end of the examination, fasten all your work securely together. The number of marks is given in brackets [ ] at the end of each question or part question.
For Examiner's Use
This document consists of 21 printed pages and 3 blank pages.
IB12 06_0420_13/FP © UCLES 2012
[Turn over
2 1 Video conferencing, Voice over Internet Protocol (VoIP) and instant messaging are all used as communication methods. Certain devices are essential to enable each of these communication methods to be used. Tick ( ) the appropriate cells in the table below to show which one or more devices are essential for each method. keyboard VoIP video conferencing instant messaging [3] microphone speaker webcam
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2
Describe ways to guard against each of the following Internet security issues. (A different method should be given in each case.) viruses
hacking
spyware
phishing
tapping into wireless networks
[5]
© UCLES 2012
0420/13/M/J/12
3 3 An airport is converting all its manual information systems to computerised systems. (a) One stage in analysing the existing system is fact finding. State three methods of fact finding: 1 2 3 [3]
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(b) Which of your named methods would be best suited to