Open-Closed Principle Quiz
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Questions and Answers

According to the open–closed principle, software entities should be open for extension, but closed for modification. This means:

  • Allowing behavior extension without modifying source code (correct)
  • Disallowing any form of extension
  • Allowing modification of source code for behavior extension
  • Disallowing source code modification
  • Which technique is used to implement the open–closed principle?

  • Removal of all extension points
  • Direct modification of source code
  • Complete restructuring of software entities
  • Generalizations such as inheritance or delegate functions (correct)
  • In the context of the open–closed principle, a module is considered open if:

  • It contains a stable description
  • It is still available for extension (correct)
  • It is available for use by other modules
  • It requires changes to dependent programs
  • The open–closed principle is part of which set of object-oriented design principles?

    <p>SOLID principles</p> Signup and view all the answers

    During the time Bertrand Meyer introduced the open–closed principle, what was the implication of adding fields or functions to a library?

    <p>It inevitably required changes to any programs depending on that library</p> Signup and view all the answers

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