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  • Question
  • Which of the following is used to make an abstract class?


  • Options
  • A. Declaring it abstract using static keyword.
  • B. Declaring it abstract using virtual keyword.
  • C. Making at least one member function as virtual function.
  • D. Making at least one member function as pure virtual function.

  • Correct Answer
  • Making at least one member function as pure virtual function. 


  • OOPS Concepts problems


    Search Results


    • 1. Which of the following is a mechanism of static polymorphism?

    • Options
    • A. Operator overloading
    • B. Function overloading
    • C. Templates
    • D. All of the above
    • Discuss
    • 2. Which of the following provides a reuse mechanism?

    • Options
    • A. Abstraction
    • B. Inheritance
    • C. Dynamic binding
    • D. Encapsulation
    • Discuss
    • 3. Which of the following operators cannot be overloaded?

    • Options
    • A. []
    • B. ->
    • C. ?:
    • D. *
    • Discuss
    • 4. Which of the following cannot be used with the keyword virtual?

    • Options
    • A. class
    • B. member functions
    • C. constructor
    • D. destructor
    • Discuss
    • 5. Which of the following are available only in the class hierarchy chain?

    • Options
    • A. Public data members
    • B. Private data members
    • C. Protected data members
    • D. Member functions
    • Discuss
    • 6. Which of the following concepts means adding new components to a program as it runs?

    • Options
    • A. Data hiding
    • B. Dynamic typing
    • C. Dynamic binding
    • D. Dynamic loading
    • Discuss
    • 7. Which of the following term is used for a function defined inside a class?

    • Options
    • A. Member Variable
    • B. Member function
    • C. Class function
    • D. Classic function
    • Discuss
    • 8. How "Late binding" is implemented in C++?

    • Options
    • A. Using C++ tables
    • B. Using Virtual tables
    • C. Using Indexed virtual tables
    • D. Using polymorphic tables
    • Discuss
    • 9. Which of the following concepts provides facility of using object of one class inside another class?

    • Options
    • A. Encapsulation
    • B. Abstraction
    • C. Composition
    • D. Inheritance
    • Discuss
    • 10. Which of the following functions are performed by a constructor?

    • Options
    • A. Construct a new class
    • B. Construct a new object
    • C. Construct a new function
    • D. Initialize objects
    • Discuss


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