Technical Questions Answer on C 2016

Technical Questions Answer on C 2016.

C/C++ Questions
1. What is the output of printf(“%d”)
2. What will happen if I say delete this
3. Difference between “C structure” and “C++ structure”.
4. Difference between a “assignment operator” and a “copy constructor”
5. What is the difference between “overloading” and “overriding”?
6. Explain the need for “Virtual Destructor”.
7. Can we have “Virtual Constructors”?
8. What are the different types of polymorphism?
9. What are Virtual Functions? How to implement virtual functions in “C”
10. What are the different types of Storage classes?
11. What is Namespace?
12. What are the types of STL containers?
13. Difference between “vector” and “array”?
14. How to write a program such that it will delete itself after execution?
15. Can we generate a C++ source code from the binary file?
16. What are inline functions?
17. Talk some timing about profiling?
18. How many lines of code you have written for a single program?
19. What is “strstream”?
20. How to write Multithreaded applications using C++?
21. Explain “passing by value”, “passing by pointer” and “passing by reference”
22. Write any small program that will compile in “C” but not in “C++”
23. Have you heard of “mutable” keyword?
24. What is a “RTTI”?
25. Is there something that I can do in C and not in C++?
26. Why pre increment operator is faster than post increment?
27. What is the difference between “calloc” and “malloc”?
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