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OCR Computer science component 2

Quiz by K Harrison

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10 questions
Show answers
  • Q1
    Which of the following data types is not commonly used for representing text in programming languages?
    Integer
    Boolean
    Char
    String
    30s
  • Q2
    What is the purpose of an algorithm in computer science?
    To solve a specific problem or perform a task
    To connect to a network
    To display graphics
    To store data
    30s
  • Q3
    Which of the following is not a characteristic of object-oriented programming (OOP)?
    Spaghetti code
    Polymorphism
    Inheritance
    Encapsulation
    30s
  • Q4
    What is the purpose of a constructor in object-oriented programming?
    To define methods
    To initialize the object's state
    To create object instances
    To set class variables
    30s
  • Q5
    What is the role of a superclass in inheritance in object-oriented programming?
    To restrict access to its methods
    To hide data from subclasses
    To create new instances of objects
    To define common attributes and methods for its subclasses
    30s
  • Q6
    What does the term 'abstraction' refer to in the context of computer programming?
    Writing complex code without comments
    Displaying error messages without clarification
    Hiding implementation details and showing only essential features of an object
    Using detailed and technical language in code
    30s
  • Q7
    What is the purpose of exception handling in programming?
    To increase code complexity
    To optimize program performance
    To enhance user interface design
    To handle runtime errors and prevent program crashes
    30s
  • Q8
    What is the significance of Big O notation in algorithm analysis?
    To represent the number of lines of code in an algorithm
    To determine the output of the algorithm
    To describe the efficiency or performance of an algorithm in terms of its input size
    To design user interfaces for algorithms
    30s
  • Q9
    What is the purpose of a stack data structure in computer science?
    To retrieve data based on a specific key
    To follow the Last In, First Out (LIFO) principle for data retrieval
    To store data in random order
    To follow the First In, First Out (FIFO) principle
    30s
  • Q10
    What is the purpose of recursion in programming?
    To solve problems by breaking them down into smaller, similar subproblems
    To increase the size of the program
    To repeat a set of instructions indefinitely
    To execute tasks in sequential order
    30s

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