C++ Quiz

1.Who invented C++?

• a) Dennis Ritchie

• b) Ken Thompson

• c) Brian Kernighan

• d) Bjarne Stroustrup

2. Which of the following is used for comments in C++?

• a) /* comment /

• b) // comment /

• c) // comment

• d) both // comment or /* comment */

3.Which of the following is a correct identifier in C++

• a) VAR_1234

• b) $var_name

• c) 7VARNAME

• d) 7var_name

4.What happens if the following program is executed in C and C++?

#include <stdio.h>

int main(void){

int new = 5;

printf("%d", new); }

• a) Error in C and successful execution in C++

• b) Error in both C and C++

• c) Error in C++ and successful execution in C

• d) A successful run in both C and C++

5.Which of the following correctly declares an array in C++?

• a) array{10};

• b) array array[10];

• c) int array;

• d) int array[10];

6.What is the size of wchar_t in C++?

• a) Based on the number of bits in the system

• b) 2 or 4

• c) 4

• d) 2

7. Which is more effective while calling the C++ functions?

• a) call by object

• b) call by pointer

• c) call by value

• d) call by reference

8. Which of the following is used to terminate the function declaration in C++?

• a) ;

• b) ]

• c) )

• d) :

9. Which keyword is used to define the macros in c+

• a) #macro

• b) #define

• c) macro

• d) define

10. What is Inheritance in C++?

• a) Deriving new classes from existing classes

• b) Overloading of classes

• c) Classes with same names

• d) Wrapping of data into a single class