C Language Interview Question And Answer

1.    What is C language ?

2.    What does static variable mean?

3.    What are the different storage classes in C ?

4.    What is hashing ?

5.    Can static variables be declared in a header file ?

6.    Can a variable be both constant and volatile ?

7.    Can include files be nested?

8.    What is a null pointer ?

9.    What is the output of printf("%d") ?

10. What is the difference between calloc() and malloc() ?

11. What is the difference between printf() and sprintf() ?

12. How to reduce a final size of executable ?

13. Can you tell me how to check whether a linked list is circular ?

14. Advantages of a macro over a function ?

15. What is the difference between strings and character arrays ?

16. Write down the equivalent pointer expression for referring the same element a[i][j][k][l] ?

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