Exam-style question
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Explain the process of information hiding. In your answer, distinguish between essential characteristics of an object and details that should be hidden.
Model answer
What a good answer should say
- Information hiding involves identifying the characteristics that are essential to an object and retaining those characteristics.
- Details that do not contribute to the object's essential characteristics are hidden.
- The result presents the important characteristics without exposing unnecessary details.
Explanation
Why this works
A complete answer identifies both parts of the process: essential characteristics are retained, and non-contributing details are hidden. The distinction between the two is central to the definition.
Common mistake
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