Learn C++ MCQs
Prepare C++ MCQs (Multiple choice Questions) for exam and job interviews.
Which of the following is not a part of the C++ Standard Template Library (STL)?
1) list
2) map
3) set
4) None of the above
Answer : Option 4
What will be the output of cout << (true && false || true) << endl;
1) 1
2) 0
3) true
4) false
Answer : Option 1
Which of the following is used to declare a friend function in C++?
1) friend void func();
2) void friend func();
3) friend func();
4) None of the above
Answer : Option 1
Which of the following is a valid way to initialize an array in C++?
1) int arr[3] = {1, 2, 3};
2) int arr[] = {1, 2, 3};
3) Both 1 and 2
4) None of the above
Answer : Option 3
What will be the output of cout << (2 + 2 * 2) << endl;
1) 6
2) 8
3) 4
4) None of the above
Answer : Option 1
Which of the following statements is true about C++?
1) C++ is a low-level language.
2) C++ is a high-level language.
3) C++ does not support object-oriented programming.
4) None of the above
Answer : Option 2
What is the output of cout << (true + 1) << endl;
1) 1
2) 2
3) 0
4) None of the above
Answer : Option 2
Which of the following is the correct way to define a default constructor in C++?
1) MyClass() {}
2) MyClass(int x) {}
3) void MyClass() {}
4) None of the above
Answer : Option 1
What is the correct way to create a constant variable in C++?
1) const int x = 5;
2) int const x = 5;
3) Both 1 and 2
4) None of the above
Answer : Option 3
What is the output of cout << (3 * (4 + 5)) << endl;
1) 27
2) 27
3) 9
4) None of the above
Answer : Option 1