CAIE AS Level Computer Science (9618) Practical Syllabus Summarized Notes
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Questions and Answers

What is the process of breaking down problems into subproblems in order to understand a process more clearly?

  • Stepwise Refinement
  • Algorithm
  • Abstraction
  • Decomposition (correct)

Which term refers to a solution to a problem expressed as a sequence of steps?

  • Abstraction
  • Decomposition
  • Algorithm (correct)
  • Identifier Table

What is the process of developing a modular design by splitting a problem into smaller sub-tasks, which themselves are repeatedly split into even smaller sub-tasks until each is just one element of the final program?

  • Abstraction
  • Identify Table
  • Decomposition
  • Stepwise Refinement (correct)

What does an identifier table depict information about?

<p>Variable (A)</p> Signup and view all the answers

What is the process of filtering out and concentrating on the relevant information in a problem, allowing a programmer to deal with complexity?

<p>Abstraction (D)</p> Signup and view all the answers

Which data type is used to store a single unit of storage, such as a letter, number, punctuation, or space?

<p>Character (D)</p> Signup and view all the answers

What is the primary difference between subroutines and procedures?

<p>Subroutines return a value, while procedures do not. (B)</p> Signup and view all the answers

What is the best loop to use when the number of iterations required is known?

<p>FOR loop (B)</p> Signup and view all the answers

Which control structure has a test to decide if certain instructions are executed?

<p>Selection (C)</p> Signup and view all the answers

What does the '!=' operator signify in programming?

<p>Not equal to (B)</p> Signup and view all the answers

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