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1. 
Which of the following approach is used by C++?

2. 
Which of the following user-defined header file extension used in c++?

3. 
Which of the following is used for comments in C++?

4. 
What happens if the following C++ statement is compiled and executed?

int *ptr = NULL;
delete ptr;

5. 
Which of the following is a correct identifier in C++?

6. 
What is the use of the indentation in c++?

7. 
Which of the following is not a type of Constructor in C++?

8. 
What is the value of p in the following C++ code snippet?

  1.     #include
  2.     using namespace std;
  3.     int main()
  4.     {
  5.         int p;
  6.         bool a = true;
  7.         bool b = false;
  8.         int x = 10;
  9.         int y = 5;
  10.         p = ((x | y) + (a + b));
  11.         cout << p;
  12.         return 0;
  13.     }

9. 
What will be the output of the following C++ code?

#include
#include
using namespace std;

int main(int argc, char const *argv[])

{

              char s1[6] = "Hello";

              char s2[6] = "World";

              char s3[12] = s1 + " " + s2;

              cout<<s3;

              return 0;

}

10. 
Which of the following C++ 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;

}

========================================

11. 
What happens if the following program is executed in C and C++?

#include

int main(void)

{
              int new = 5;
              printf("%d", new);
}

12. 
What will be the output of the following C++ code?

  1.     #include
  2.     using namespace std;
  3.     int main()
  4.     {
  5.         char c = 74;
  6.         cout << c;
  7.         return 0;
  8.     }

13. 
What will be the output of the following C++ program?

#include

#include

#include

using namespace std;

int main(int argc, char const *argv[])

{

              const char *a = "Hello\0World";

              cout<<a;

              return 0;

}

14. 
Which of the following is used to terminate the function declaration in C++?

15. 
By default, all the files in C++ are opened in _________ mode.

16. 
Which of the following type is provided by C++ but not C?

17. 
Which is more effective while calling the C++ functions?

18. 
What is C++?

19. 
What happens if the following program is executed in C and C++?

#include

void func(void)

{

              printf("Hello");

}

void main()

{

              func();

              func(2);

}

20. 
What will be the output of the following C++ code?

#include

using namespace std;

int main ()

{

   int cin;

   cin >> cin;

   cout << "cin: " << cin;

   return 0;

}

21. 
What will be the output of the following C++ function?

  1.     int main()
  2.     {
  3.         register int i = 1;
  4.         int *ptr = &i;
  5.         cout << *ptr;
  6.               return 0;
  7.     }

22. 
Which of the following is correct about this pointer in C++?

23. 
Which of the following correctly declares an array in C++?

24. 
What is the difference between delete and delete[] in C++?

25. 
What will be the output of the following C++ code?

  1.     #include
  2.     #include
  3.     #include
  4.     using namespace std;
  5.     int main()
  6.     {
  7.         string s = "spaces in text";
  8.         s.erase(remove(s.begin(), s.end(), ' ' ), s.end() ) ;
  9.         cout << s << endl;
  10.     }

26. 
What is the size of wchar_t in C++?

27. 
What is virtual inheritance in C++?

28. 
Who invented C++?

29. 
What will be the output of the following C++ program?

  1.     #include
  2.     #include
  3.     using namespace std;
  4.     int main()
  5.     {
  6.         cout << setprecision(17);
  7.         double d = 0.1;
  8.         cout << d << endl;
  9.         return 0;
  10.     }