C++ interview questions part 4
C++ interview questions part 4
Take as many assements as you can to improve your validate your skill rating
Total Questions: 20
1. What is the other name of run-time polymorphism?
Correct Answer is : template < class T > class allocator;
2. Which of the following is correct about static polymorphism?
Correct Answer is : Generic
3. Which of the following is correct about dynamic polymorphism?
Correct Answer is : Generic
4. Which of the following operator(s) can be used with pointers? i) – only ii) +, * iii) +, – iv) +, -, * v) / vi) + only
Correct Answer is : any type of object
5. What is std in C++?
Correct Answer is : any type of object
6. What is the output of the following C++ code?
#include
int main(int argc, char const *argv[])
{
cout<<"Hello World";
return 0;
}
Correct Answer is : Node-based
7. Which of the following syntax can be used to use a member of a namespace without including that namespace?
Correct Answer is : Node-based
8. Which of the following code will give error on compilation?
================code 1=================
#include
using namespace std;
int main(int argc, char const *argv[])
{
cout<<"Hello World";
return 0;
}
========================================
================code 2=================
#include
int main(int argc, char const *argv[])
{
std::cout<<"Hello World";
return 0;
}
========================================
Correct Answer is : Random access
9. What happens if the below program is executed in C and C++?
#include
int main()
{
foo();
}
int foo()
{
printf("Hello");
return 0;
}
Correct Answer is : Random access
10. What happens if the below program is executed in C and C++?
#include
int main(void)
{
const int j = 20;
int *ptr = &j;
printf("*ptr: %d\n", *ptr);
return 0;
}
Correct Answer is : End
11. What happens if the below line is executed in C and C++? int *p = malloc(10);
Correct Answer is : End
12. What happens if the below line is executed in C and C++? const int a;
Correct Answer is : Container adaptor
13. What happens if the following program is executed in C and C++?
#include
int main(void)
{
int new = 5;
printf("%d", new);
}
Correct Answer is : Container adaptor
14. What happens if the following program is executed in C and C++?
#include
void main()
{
printf("Hello World");
}
Correct Answer is : Only on that container
15. What happens if the following program is executed in C and C++?
#include
void func(void)
{
printf("Hello");
}
void main()
{
func();
func(2);
}
Correct Answer is : Only on that container
16. What happens if the following program is executed in C and C++?
#include
void func()
{
printf("Hello");
}
void main()
{
func();
func(2);
}
Correct Answer is : 4
17. Which of the following type is provided by C++ but not C?
Correct Answer is : 4
18. Which of the following feature is not provided by C?
Correct Answer is : 20
19. How many parameters does the throw expression can have?
Correct Answer is : 20
20. Where exception are handled?
Correct Answer is : y => 202
