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it contains lab exercises of c language
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C LanguageQuestions and
Answers
Abstract
This PDF contains 100+ Q&A on C Language to help you
remind yourself of basic concepts and definitions. Especially
helpful for Interviews and quick references.
, Page 1
1. What does static variable mean?
2. What is a pointer?
3. What are the uses of a pointer?
4. What is a structure?
5. What is a union?
6. What are the differences between structures and union?
7. What are the differences between structures and arrays?
8. In header files whether functions are declared or defined?
9. What are the differences between malloc () and calloc ()?
10. What are macros? What are its advantages and disadvantages?
11. Difference between pass by reference and pass by
12. What is static identifier?
13. Where is the auto variables stored?
14. Where does global, static, and local, register
15. Difference between arrays and linked list?
16. What are enumerations?
17. Describe about storage allocation and scope of
18. What are register variables? What are the advantages
19. What is the use of typedef?
20. Can we specify variable field width in a scanf()
21. Out of fgets() and gets() which function is safe to use and why?
22. Difference between strdup and strcpy?
23. What is recursion?
www.cpp-progams.blogspot.com
, Page 2
24. Differentiate between a for loop and a while loop? What are it uses?
25. What is storage class.What are the different storage classes in C?
26. What the advantages of using Unions?
27. What is the difference between Strings and Arrays?
28. What is a far pointer? where we use it?
29. What is a huge pointer?
30. What is a normalized pointer ,how do we normalize a pointer?
31. What is near pointer.
32. In C, why is the void pointer useful? When would you use it?
33. What is a NULL Pointer? Whether it is same as an uninitialized pointer?
34. Are pointers integer ?
35. What does the error ‘Null Pointer Assignment’ means and what causes this
error?
36. What is generic pointer in C?
37. Are the expressions arr and &arr same for an array of integers?
38. How pointer variables are initialized ?
39. What is static memory allocation ?
40. What is dynamic memory allocation?
41. What is the purpose of realloc ?
42. What is pointer to a pointer.
43. What is an array of pointers ?
44. Difference between linker and linkage ?
45. Is it possible to have negative index in an array?
46. Why is it necessary to give the size of an array in an array declaration ?
www.cpp-progams.blogspot.com
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