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JAMB and WAEC Computer Studies questions: Algorithms and flowcharts

39 questions with answers and explanations. Tap an option to check yourself.

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All topicsAlgorithms and flowcharts · 39Application packages · 46Computer hardware and the CPU · 41Computer networks and the internet · 45Computer security, ethics and safety · 40Data processing and information · 40Evolution of computing · 42Input and output devices · 40Logic gates and Boolean algebra · 39Memory and storage devices · 44Number systems and data representation · 47Programming languages and BASIC · 43Software and operating systems · 42

  1. Question 1· Algorithms and flowcharts· WAEC

    Which of these is written in pseudocode style?

    Explanation and discussion

  2. Question 2· Algorithms and flowcharts· JAMB

    A trace table is used to

    Explanation and discussion

  3. Question 3· Algorithms and flowcharts· WAEC

    A set of step-by-step instructions for solving a problem is

    Explanation and discussion

  4. Question 4· Algorithms and flowcharts· JAMB

    A WHILE loop repeats its instructions

    Explanation and discussion

  5. Question 5· Algorithms and flowcharts· WAEC

    An algorithm is

    Explanation and discussion

  6. Question 6· Algorithms and flowcharts· WAEC

    An algorithm sets S = 0, then adds 2, 4 and 6 to S. The final value of S is

    Explanation and discussion

  7. Question 7· Algorithms and flowcharts· JAMB

    The flowchart symbol used to show the start or end of a process is the

    Explanation and discussion

  8. Question 8· Algorithms and flowcharts· JAMB

    Dry running an algorithm means

    Explanation and discussion

  9. Question 9· Algorithms and flowcharts· JAMB

    Searching a sorted list by repeatedly halving it is

    Explanation and discussion

  10. Question 10· Algorithms and flowcharts· JAMB

    A linear search checks items

    Explanation and discussion

  11. Question 11· Algorithms and flowcharts· JAMB

    In the loop FOR I = 1 TO 5: S = S + I (S starts at 0), the final value of S is

    Explanation and discussion

  12. Question 12· Algorithms and flowcharts· WAEC

    A loop in a program is used to

    Explanation and discussion

  13. Question 13· Algorithms and flowcharts· WAEC

    In a flowchart, a diamond shape represents

    Explanation and discussion

  14. Question 14· Algorithms and flowcharts· WAEC

    A loop in an algorithm is used to

    Explanation and discussion

  15. Question 15· Algorithms and flowcharts· WAEC

    In a flowchart, the diamond symbol represents a

    Explanation and discussion

  16. Question 16· Algorithms and flowcharts· JAMB

    In a flowchart, a decision is represented by a

    Explanation and discussion

  17. Question 17· Algorithms and flowcharts· WAEC

    If A = 5 and B = 3, the statement "IF A > B THEN PRINT A ELSE PRINT B" prints

    Explanation and discussion

  18. Question 18· Algorithms and flowcharts· JAMB

    Binary search requires the list to be

    Explanation and discussion

  19. Question 19· Algorithms and flowcharts· WAEC

    Testing an algorithm by working through it by hand with sample values is a

    Explanation and discussion

  20. Question 20· Algorithms and flowcharts· WAEC

    Dry-running an algorithm with sample values helps the programmer to

    Explanation and discussion

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