c programming interview question

Here are some basic C interview questions that you might encounter:

1. What is C programming language?
2. What is the difference between C and C++?
3. What is a pointer in C?
4. What is the difference between a pointer and an array?
5. What is a structure in C?
6. What is the difference between a structure and a union?
7. What is a function in C?
8. What is recursion in C?
9. What is the difference between pass by reference and pass by value?
10. What is a static variable in C?
11. What is a file in C?
12. What is the difference between text file and binary file?
13. What is a header file in C?
14. What is the difference between #include <file> and #include "file"?
15. What is a preprocessor in C?
16. What is the purpose of the main() function in C?
17. What is the format specifier for a float data type?
18. What is the difference between ++i and i++ in C?
19. What is the difference between == and = in C?
20. What is a NULL pointer in C?

These are just a few examples of the types of questions you may encounter in a basic C interview. It's important to have a solid understanding of the fundamentals of the language, as well as be able to demonstrate your ability to write and debug simple programs in C.