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  • Question
  • Which of the following is the correct class of the object cout?


  • Options
  • A. iostream
  • B. istream
  • C. ostream
  • D. ifstream

  • Correct Answer
  • ostream 


  • OOPS Concepts problems


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    • 1. Which one of the following options is correct about the statement given below? The compiler checks the type of reference in the object and not the type of object.

    • Options
    • A. Inheritance
    • B. Polymorphism
    • C. Abstraction
    • D. Encapsulation
    • Discuss
    • 2. Which of the following statements regarding inline functions is correct?

    • Options
    • A. It speeds up execution.
    • B. It slows down execution.
    • C. It increases the code size.
    • D. Both A and C.
    • Discuss
    • 3. What happens if the base and derived class contains definition of a function with same prototype?

    • Options
    • A. Compiler reports an error on compilation.
    • B. Only base class function will get called irrespective of object.
    • C. Only derived class function will get called irrespective of object.
    • D. Base class object will call base class function and derived class object will call derived class function.
    • Discuss
    • 4. Which of the following concepts is used to implement late binding?

    • Options
    • A. Virtual function
    • B. Operator function
    • C. Const function
    • D. Static function
    • Discuss
    • 5. Which of the following header file includes definition of cin and cout?

    • Options
    • A. istream.h
    • B. ostream.h
    • C. iomanip.h
    • D. iostream.h
    • Discuss
    • 6. Which one of the following is correct about the statements given below?

      1. All function calls are resolved at compile-time in Procedure Oriented Programming.
      2. All function calls are resolved at compile-time in OOPS.

    • Options
    • A. Only II is correct.
    • B. Both I and II are correct.
    • C. Only I is correct.
    • D. Both I and II are incorrect.
    • Discuss
    • 7. Which of the following is correct about class and structure?

    • Options
    • A. class can have member functions while structure cannot.
    • B. class data members are public by default while that of structure are private.
    • C. Pointer to structure or classes cannot be declared.
    • D. class data members are private by default while that of structure are public by default.
    • Discuss
    • 8. Which of the following concepts of OOPS means exposing only necessary information to client?

    • Options
    • A. Encapsulation
    • B. Abstraction
    • C. Data hiding
    • D. Data binding
    • Discuss
    • 9. Which of the following statements is correct in C++?

    • Options
    • A. Classes cannot have data as protected members.
    • B. Structures can have functions as members.
    • C. Class members are public by default.
    • D. Structure members are private by default.
    • Discuss
    • 10. Which of the following is not a type of inheritance?

    • Options
    • A. Multiple
    • B. Multilevel
    • C. Distributive
    • D. Hierarchical
    • Discuss


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