Computer Science HL Paper 3 Predicted Questions

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  1. Define the term authentication.
  2. Describe the term backdoor methods, and explain its functions in computer security
  3. What is Man-in-the-Browser (MitB) Trojan and how does it work?
  4. How is TAN (Transaction Authentication Number) is used by some inline banking services?
  5. How does the role of Zapp play an important factor in computer security?
  6. Outline two disadvantages and two advantages of using Internet Banking.
  7. Distinguish between Internet Banking and Mobile Banking.
  8. Explain why is it important for TransEuropa to face their challenges for the immediate future.
  9. Explain the importance of creating an SSL protocol for security of online operations.
  10. Discuss the problems that could arise due to phishing exploits and the Man-in-the-Browser Trojan

Command terms with definitions

Students should be familiar with the following key terms and phrases used in examination questions, which are to be understood as described below. Although these terms will be used frequently in examination questions, other terms may be used to direct students to present an argument in a specific way.

Analyse 3 Break down in order to bring out the essential elements or structure.
Annotate 2 Add brief notes to a diagram or graph.
Apply 2 Use an idea, equation, principle, theory or law in relation to a given problem or issue.
Calculate 2 Obtain a numerical answer showing the relevant stages in the working.
Classify 1 Arrange or order by class or category.
Comment 3 Give a judgment based on a given statement or result of a calculation.
Compare 3 Give an account of the similarities between two (or more) items or situations, referring to both (all) of them throughout.
Compare and contrast 3 Give an account of similarities and differences between two (or more) items or situations, referring to both (all) of them throughout.
Construct 3 Display information in a diagrammatic or logical form.
Contrast 3 Give an account of the differences between two (or more) items or situations, referring to both (all) of them throughout.
Deduce 3 Reach a conclusion from the information given.
Define 1 Give the precise meaning of a word, phrase, concept or physical quantity.
Demonstrate 3 Make clear by reasoning or evidence, illustrating with examples or practical application.
Derive 3 Manipulate a mathematical relationship to give a new equation or relationship.
Describe 2 Give a detailed account.
Design 2 Produce a plan, simulation or model.
Determine 3 Obtain the only possible answer.
Discuss 3 Offer a considered and balanced review that includes a range of arguments, factors or hypotheses. Opinions or conclusions should
be presented clearly and supported by appropriate evidence.
Distinguish 2 Make clear the differences between two or more concepts or items.
Draw 1 Represent by means of a labelled, accurate diagram or graph, using a pencil. A ruler (straight edge) should be used for straight lines.
Diagrams should be drawn to scale. Graphs should have points correctly plotted (if appropriate) and joined in a straight line or smooth curve.
Estimate 2 Obtain an approximate value.
Evaluate 3 Make an appraisal by weighing up the strengths and limitations.
Examine 3 Consider an argument or concept in a way that uncovers the assumptions and interrelationships of the issue.
Explain 3 Give a detailed account including reasons or causes.
Formulate 3 Express precisely and systematically the relevant concept(s) or argument(s).
Identify 2 Provide an answer from a number of possibilities.
Interpret 3 Use knowledge and understanding to recognize trends and draw conclusions from given information.
Investigate 3 Observe, study, or make a detailed and systematic examination, in order to establish facts and reach new conclusions.
Justify 3 Give valid reasons or evidence to support an answer or conclusion.
Label 1 Add labels to a diagram.
List 1 Give a sequence of brief answers with no explanation.
Outline 2 Give a brief account or summary.
Predict 3 Give an expected result.
Present 2 Offer for display, observation, examination or consideration.
Sketch 3 Represent by means of a diagram or graph (labelled as appropriate). The sketch should give a general idea of the required shape or
relationship, and should include relevant features.
State 1 Give a specific name, value or other brief answer without explanation or calculation.
Suggest 3 Propose a solution, hypothesis or other possible answer.
To what extent 3 Consider the merits or otherwise of an argument or concept. Opinions and conclusions should be presented clearly and
supported with appropriate evidence and sound argument.
Trace 2 Follow and record the action of an algorithm.




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