Sophisticated C Plus Plus Test - 76+ MCQs: C++ Quiz: Test Your C++ Programming Knowledge with Challenging Questions

1. What is a lambda expression in C++?

A function pointer

An anonymous function

A constant function

A function with no parameters

2. What is the purpose of 'static' keyword in C++?

To create static memory allocation

To define a static function

To declare a constant variable

To specify internal linkage

3. What does the 'endl' manipulator do in C++?

Ends the program

Ends a loop

Ends a line and flushes the buffer

Ends a function

4. How does exception handling work in C++?

By using the 'try', 'catch', and 'finally' blocks

By declaring exceptions in the function signature

By using the 'throw' statement to signal an exception

Exception handling is not supported in C++

5. What is the purpose of the 'namespace' keyword in C++?

To define a new space for variables

To create a new class

To organize code into a named scope

To declare a new type

6. How do you declare a variable in C++?

variableType variableName;

name = value;

value variableName;

type variableName = value;

7. In C++, how do you initialize an array of integers with values 1, 2, and 3?

int arr[3] = {1, 2, 3};

int arr[] = {1, 2, 3};

arr[] = {1, 2, 3};

int arr[3] = (1, 2, 3);

8. What is the purpose of 'void' in a function declaration in C++?

To declare a function with no parameters

To indicate the function returns nothing

To declare a variable with no type

To specify a function with variable arguments

9. What is the purpose of 'friend' functions in C++?

To declare a function as a friend

To allow access to private or protected members of a class

To specify a function as a mutual friend

To create a function for friendly interactions

10. What is the 'nullptr' keyword used for in C++?

To define a null variable

To initialize pointers to null

To create a null object

To represent an undefined variable

C++ MCQ Test 5