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CAPE Computer Science Unit 2 · 2005 · Paper 1

41 questions and parts from this paper. Open one to see it in full, then practise it on Quelpr and get it marked against the mark scheme.

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  1. 1(a)6 marksName and describe THREE important attributes of well-engineered software.
  2. 1(b)4 marksList FOUR fundamental activities that are common to all software development approaches.
  3. 2(a)4 marksWhat are the MAIN features of the waterfall model of software development?
  4. 2(b)2 marksIn what stages of the waterfall model are users most involved?
  5. 2(c)4 marksBriefly discuss ONE advantage and ONE disadvantage of evolutionary development over the waterfall approach.
  6. 3(a)6 marksBriefly describe THREE techniques that can be used to gather the requirements for a new system.
  7. 3(b)(i)2 marksState what a feasibility report produced early in the analysis phase contains.
  8. 3(b)(ii)2 marksState why a feasibility report is produced early in the analysis phase.
  9. 4(a)6 marksDraw THREE of the symbols used in a data flow diagram and say why EACH is used.
  10. 4(b)4 marksDifferentiate between functional requirements and non-functional requirements.
  11. 5(a)4 marksBriefly discuss ONE advantage and ONE disadvantage of the command language style of user interface over the menu selection interface.
  12. 5(b)6 marksIn a hospital GUI used to view a patient's current condition (shown in Figure 1), suppose a nurse enters an incorrect patient name. Discuss THREE features that should be considered when displaying the error message, to…
  13. 6(a)6 marksList SIX main steps you must take in formulating the program.
  14. 6(b)4 marksExplain how your design approach would have been different if you were asked to write the same program using an object-oriented programming language.
  15. 7(a)(i)2 marksBriefly describe the Functional classification of programming languages.
  16. 7(a)(ii)2 marksBriefly describe the Declarative classification of programming languages.
  17. 7(a)(iii)2 marksBriefly describe the Imperative (procedural) classification of programming languages.
  18. 7(b)4 marksDiscuss TWO advantages of a top-down modular approach to programming.
  19. 8(a)(i)2 marksBriefly describe the characteristics of 2nd generation programming languages.
  20. 8(a)(ii)2 marksBriefly describe the characteristics of 3rd generation programming languages.
  21. 8(b)(i)2 marksBriefly explain how Run-time can influence the choice of a particular programming language.
  22. 8(b)(ii)2 marksBriefly explain how Portability can influence the choice of a particular programming language.
  23. 8(b)(iii)2 marksBriefly explain how Maintainability can influence the choice of a particular programming language.
  24. 910 marksA soft-drink manufacturer sells five soft-drink flavours: banana, cherry, mango, orange and pineapple. The company knows that banana and pineapple are the two best-selling flavours and is carrying out a poll to…
  25. 10(a)2 marksDefine the term algorithm.
  26. 10(b)4 marksUsing examples, distinguish between bounded and unbounded iteration as used in structured programming.
  27. 10(c)(i)2 marksDistinguish between Object and class as used in object-oriented programming.
  28. 10(c)(ii)2 marksDistinguish between Private method and public method as used in object-oriented programming.
  29. 11(a)5 marksDescribe the purpose of EACH type of user interface object shown in the diagram (Window, Textfields, Button, Labels, Fonts).
  30. 11(b)(i)1 markIdentify the most important event that the program should anticipate.
  31. 11(b)(ii)4 marksWrite an algorithm to define the processing steps that should take place when the event identified in (b)(i) occurs.
  32. 12(a)(i)3 marksBy showing each step in the processing of the input string, determine the output that the Mystery algorithm will generate given the input string: ( ) )
  33. 12(a)(ii)4 marksBy showing each step in the processing of the input string, determine the output that the Mystery algorithm will generate given the input string: ( ( ) )
  34. 12(a)(iii)2 marksBy showing each step in the processing of the input string, determine the output that the Mystery algorithm will generate given the input string: ( ( )
  35. 12(b)1 markDeduce the purpose of the Mystery algorithm.
  36. 1310 marksAn Account object has two instance variables, accNum (an integer value) and balance (a floating point value), and the following methods: - deposit: accepts a parameter, amount (a floating point value) and increases the…
  37. 14(a)4 marksIdentify FOUR tools that are typically provided in a programming environment.
  38. 14(b)6 marksBriefly explain how any THREE of the tools identified in (a) above simplify the development of a program.
  39. 15(a)(i)2 marksBriefly distinguish between 'unit testing' and 'system testing'.
  40. 15(a)(ii)4 marksA Temperature object has a method toFahrenheit, which accepts a parameter, centigrade (a floating point value) and converts this value to a fahrenheit temperature using the calculation: fahrenheit = (9/5) * centigrade +…
  41. 15(b)4 marksBriefly describe TWO types of documentation normally included in a software package.

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