C++ MCQs with answers Page - 161

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Q. What will be the output of the following code?

int a = 10, b = 3;
cout << a % b;

  • (A) 1
  • (B) 3
  • (C) 0
  • (D) 10

A

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Q. Which of the following is true about virtual functions in C++?

  • (A) They allow dynamic binding
  • (B) They cannot be overridden
  • (C) They must have a different return type
  • (D) They are not allowed in derived classes

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Q. Which operator is used to access the member of a namespace?

  • (A) ->
  • (B) ::
  • (C) .
  • (D) &

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Q. Which header file is required to use file handling in C++?

  • (A) fstream
  • (B) file
  • (C) iostream
  • (D) string

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Q. Which keyword is used to prevent a function from being overridden in derived classes?

  • (A) constant
  • (B) final
  • (C) static
  • (D) override

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Q. Which of the following is true about function templates in C++?

  • (A) They allow functions to work with any data type
  • (B) They can only be used with integers
  • (C) They require explicit type specification
  • (D) They cannot be used with classes

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Q. Which C++ feature allows different functions to have the same name but different parameters?

  • (A) Function Overloading
  • (B) Function Overriding
  • (C) Encapsulation
  • (D) Polymorphism

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Q. Which of the following is used to prevent multiple inclusions of a header file?

  • (A) #define
  • (B) #ifndef
  • (C) #include
  • (D) #pragma

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Q. Which keyword is used to define a class that cannot be instantiated?

  • (A) abstract
  • (B) virtual
  • (C) private
  • (D) protected

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Q. Which of the following is the correct syntax for defining a pointer to an integer in C++?

  • (A) int ptr;
  • (B) int *ptr;
  • (C) int &ptr;
  • (D) pointer<int> ptr;

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