C++ MCQs with answers Page - 145

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Q. What is the output of the following code snippet? int x = 5; int y = x++; cout << y;

(A) 5
(B) 6
(C) 0
(D) Error

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Q. Which of the following is the correct way to declare a constant in C++?

(A) const int x = 10;
(B) int const x = 10;
(C) Both A and B
(D) None of the above

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Q. What is the output of the following code snippet? int x = 10; int ptr = &x; cout << ptr;

(A) 10
(B) Address of x
(C) 0
(D) Error

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Q. Which of the following is the correct way to define a constructor in C++?

(A) MyClass() { }
(B) void MyClass() { }
(C) int MyClass() { }
(D) None of the above

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Q. What is the output of the following code snippet? int x = 10; int y = 20; cout << (x == y);

(A) 1
(B) 0
(C) 10
(D) 20

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Q. Which of the following is the correct way to define a destructor in C++?

(A) ~MyClass() { }
(B) void ~MyClass() { }
(C) int ~MyClass() { }
(D) None of the above

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Q. What is the output of the following code snippet? int x = 10; int y = 20; cout << (x != y);

(A) 1
(B) 0
(C) 10
(D) 20

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Q. Which of the following is the correct way to define a function outside a class in C++?

(A) void MyClass::myFunction() { }
(B) void myFunction() { }
(C) MyClass::void myFunction() { }
(D) None of the above

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Q. What is the output of the following code snippet? int x = 10; int y = 20; cout << (x < y);

(A) 1
(B) 0
(C) 10
(D) 20

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Q. Which of the following is the correct way to declare a function template in C++?

(A) template <typename T> T myFunction(T a) { }
(B) template <class T> T myFunction(T a) { }
(C) Both A and B
(D) None of the above

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C++ MCQs with answers Page - 145

Q. What is the output of the following code snippet? int x = 5; int y = x++; cout << y;

Q. Which of the following is the correct way to declare a constant in C++?

Q. What is the output of the following code snippet? int x = 10; int *ptr = &x; cout << *ptr;

Q. Which of the following is the correct way to define a constructor in C++?

Q. What is the output of the following code snippet? int x = 10; int y = 20; cout << (x == y);

Q. Which of the following is the correct way to define a destructor in C++?

Q. What is the output of the following code snippet? int x = 10; int y = 20; cout << (x != y);

Q. Which of the following is the correct way to define a function outside a class in C++?

Q. What is the output of the following code snippet? int x = 10; int y = 20; cout << (x < y);

Q. Which of the following is the correct way to declare a function template in C++?

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Q. What is the output of the following code snippet? int x = 10; int ptr = &x; cout << ptr;