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  • Question
  • Which of the following keywords is used to control access to a class member?


  • Options
  • A. Default
  • B. Break
  • C. Protected
  • D. Asm

  • Correct Answer
  • Protected 


  • Objects and Classes problems


    Search Results


    • 1. Which of the following can access private data members or member functions of a class?

    • Options
    • A. Any function in the program.
    • B. All global functions in the program.
    • C. Any member function of that class.
    • D. Only public member functions of that class.
    • Discuss
    • 2. Which of the following means "The use of an object of one class in definition of another class"?

    • Options
    • A. Encapsulation
    • B. Inheritance
    • C. Composition
    • D. Abstraction
    • Discuss
    • 3. Which of the following is the only technical difference between structures and classes in C++?

    • Options
    • A. Member function and data are by default protected in structures but private in classes.
    • B. Member function and data are by default private in structures but public in classes.
    • C. Member function and data are by default public in structures but private in classes.
    • D. Member function and data are by default public in structures but protected in classes.
    • Discuss
    • 4. Which of the following two entities (reading from Left to Right) can be connected by the dot operator?

    • Options
    • A. A class member and a class object.
    • B. A class object and a class.
    • C. A class and a member of that class.
    • D. A class object and a member of that class.
    • Discuss
    • 5. What happens when we try to compile the class definition in following code snippet?
      class Birds {};
      class Peacock : protected Birds {};

    • Options
    • A. It will not compile because class body of Birds is not defined.
    • B. It will not compile because class body of Peacock is not defined.
    • C. It will not compile because a class cannot be protectedly inherited from other class.
    • D. It will compile succesfully.
    • Discuss
    • 6. Which of the following statements is correct?

    • Options
    • A. Data items in a class must be private.
    • B. Both data and functions can be either private or public.
    • C. Member functions of a class must be private.
    • D. Constructor of a class cannot be private.
    • Discuss
    • 7. Which of the following statements is incorrect?

    • Options
    • A. Friend keyword can be used in the class to allow access to another class.
    • B. Friend keyword can be used for a function in the public section of a class.
    • C. Friend keyword can be used for a function in the private section of a class.
    • D. Friend keyword can be used on main().
    • Discuss
    • 8. Constructor is executed when _____.

    • Options
    • A. an object is created
    • B. an object is used
    • C. a class is declared
    • D. an object goes out of scope.
    • Discuss
    • 9. Which of the following statements is correct when a class is inherited privately?

    • Options
    • A. Public members of the base class become protected members of derived class.
    • B. Public members of the base class become private members of derived class.
    • C. Private members of the base class become private members of derived class.
    • D. Public members of the base class become public members of derived class.
    • Discuss
    • 10. How many objects can be created from an abstract class?

    • Options
    • A. Zero
    • B. One
    • C. Two
    • D. As many as we want
    • Discuss


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