C++ MCQs with answers Page - 130

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Q. Which of the following statement is incorrect?

  • (A) The default value for an argument can be a global constant.
  • (B) The default arguments are given in the function prototype.
  • (C) Compiler uses the prototype information to build a call, not the function definition.
  • (D) The default arguments are given in the function prototype and should be repeated in the function definition.

A

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Q. Which of the following statement is correct?

  • (A) The default value for an argument cannot be function call.
  • (B) C++ allows the redefinition of a default parameter.
  • (C) Both A and B.
  • (D) C++ does not allow the redefinition of a default parameter.

A

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Q. Which of the following statement is correct?

  • (A) Only one parameter of a function can be a default parameter.
  • (B) Minimum one parameter of a function must be a default parameter.
  • (C) All the parameters of a function can be default parameters.
  • (D) No parameter of a function can be default.

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Q. Which of the following function / types of function cannot have default parameters?

  • (A) Member function of class
  • (B) main()
  • (C) Member function of structure
  • (D) Both B and C

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Q. A constructor that accepts __________ parameters is called the default constructor.

  • (A) one
  • (B) two
  • (C) no
  • (D) three

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Q. What happens when a class with parameterized constructors and having no default constructor is used in a program and we create an object that needs a zero‐argument constructor?

  • (A) Compile‐time error.
  • (B) Preprocessing error.
  • (C) Runtime error.
  • (D) Runtime exception.

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Q. Destructor has the same name as the constructor and it is preceded by ______ .

  • (A) !
  • (B) ?
  • (C) ~
  • (D) $

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Q. Which constructor function is designed to copy objects of the same class type?

  • (A) Create constructor
  • (B) Object constructor
  • (C) Dynamic constructor
  • (D) Copy constructor

A

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Q. Which of the following statement is correct?

  • (A) Constructor has the same name as that of the class.
  • (B) Destructor has the same name as that of the class with a tilde symbol at the beginning.
  • (C) Both A and B.
  • (D) Destructor has the same name as the first member function of the class.

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Q. When are the Global objects destroyed?

  • (A) When the control comes out of the block in which they are being used.
  • (B) When the program terminates.
  • (C) When the control comes out of the function in which they are being used.
  • (D) As soon as local objects die.

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