MCQ on C++ (Part-1): Master the Basics of This Language With These MCQs

Question 1: What does the acronym "C++" stand for?

Question 2: Which of the following is a valid C++ identifier?

Question 3: Which of the following is not a fundamental data type in C++?

Question 4: What is the correct syntax for a for loop in C++?

Question 5: What is the output of the following code snippet?

int x = 5;
int y = 10;
int z = x + y;
std::cout << z;

Question 6: Which of the following is the correct way to declare a constant variable in C++?

Question 7: What is the output of the following code snippet?

int num = 10;
std::cout << "The value of num is " << num++ << std::endl;
std::cout << "The value of num is " << ++num << std::endl;

Question 8: What is the purpose of the "iostream" library in C++?

Question 9: What is the correct way to allocate dynamic memory in C++?

Question 10: Which of the following is not a valid C++ access specifier?

Question 11: Which of the following is the correct way to access the value of a member variable in a class?

Question 12: Which of the following is the correct way to define a function outside of a class in C++?

Question 13: What is the purpose of the "break" statement in a switch statement?

Question 14: What is the output of the following code snippet?

int x = 5;
int* ptr = &x;
std::cout << *ptr << std::endl;

Question 15: What is the purpose of the "this" pointer in C++?

Question 16: What is the output of the following code snippet?

int x = 10;
int y = x++;
std::cout << y << std::endl;

Question 17: What is the purpose of the "const" keyword in C++?

Question 18: Which of the following is not a valid way to initialize an array in C++?

Question 19: What is the output of the following code snippet?

int arr[] = {1, 2, 3, 4, 5};
std::cout << arr[3] << std::endl;

Question 20: What is the purpose of the "virtual" keyword in C++?

Question 21: Which of the following is not a valid data type in C++?

Question 22: What is the correct way to declare a function template in C++?

Question 23: What is the output of the following code snippet?

int x = 10;
int y = 5;
int result = x / y;
std::cout << result << std::endl;

Question 24: What is the purpose of the "static" keyword in C++?

Question 25: What is the purpose of the "friend" keyword in C++?

Question 26: What is the correct way to allocate dynamic memory for a single integer in C++?

Question 27: What is the output of the following code snippet?

int a = 5;
int b = 2;
int result = a % b;
std::cout << result << std::endl;

Question 28: What is the purpose of the "const" keyword in C++?

Question 29: What does the "endl" manipulator do in C++?

Question 30: Which of the following statements about function overloading in C++ is true?