C++ MCQs with answers Page - 50

Here, you will find a collection of MCQ questions on C++. Go through these questions to enhance your preparation for upcoming examinations and interviews.

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Q. Which one of the following options is correct?

  • (A) Friend function can access public data members of the class.
  • (B) Friend function can access protected data members of the class.
  • (C) Friend function can access private data members of the class.
  • (D) All of the above.

A

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Q. Which of the following statements is correct in C++?

  • (A) Structure members are private by default.
  • (B) Class members are public by default.
  • (C) Structures can have functions as members.
  • (D) Classes cannot have data as protected members.

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Q. Which of the following is used to make an abstract class?

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

A

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Q. Which of the following access specifier is used as a default in a class definition?

  • (A) friend
  • (B) private
  • (C) public
  • (D) protected

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Q. What is correct about the static data member of a class?

  • (A) A static member function can access only static data members of a class.
  • (B) A static data member is shared among all the object of the class.
  • (C) A static data member can be accessed directly from main().
  • (D) Both A and B.

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Q. cout is a/an __________ .

  • (A) macro
  • (B) object
  • (C) function
  • (D) operator

A

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Q. Which of the following concepts provides facility of using object of one class inside another class?

  • (A) Inheritance
  • (B) Composition
  • (C) Abstraction
  • (D) Encapsulation

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Q. How many types of polymorphisms are supported by C++?

  • (A) 1
  • (B) 3
  • (C) 2
  • (D) 4

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Q. Which of the following is an abstract data type?

  • (A) Class
  • (B) string
  • (C) double
  • (D) int

A

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Q. Which of the following keyword is used to overload an operator?

  • (A) override
  • (B) friend
  • (C) operator
  • (D) overload

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