C Interview Questions

Audio Routing: https://lwn.net/Articles/551936/
Audio Mixing: http://alsa.opensrc.org/Dmix

http://www.cprogramming.com/tutorial/shared-libraries-linux-gcc.html
http://aarkloninfo.blogspot.in/2007/11/hidden-treasure-of-c-by-rajiv.html
Why and when to use static structures in C programming?
http://stackoverflow.com/questions/12138742/the-member-variable-of-a-static-struct-in-c
http://stackoverflow.com/questions/6013373/c-usage-of-static-within-a-struct
 
What is typedef in C?
What are the storage classes in C? Explain it? 
when to use volatile.
when to use register. 
How to convert Hex to Decimal?
How to convert Decimal to Hex?
How to swap nibbles in integer?

Write code for all sorting algorithms.
Write code for string reverse.
Write code for counting words in file.
Write code for atoi() and itoa().
Write code for strstr function.
Write code for string concate.
Write code for reversing words sequence in a sentense.
e.g. This is my first blog. O/P: blog first my is This. 
Write code for removing extra spaces in sentense.
Write code for counting occurances of substring in string.
Write code for singly linked list with add, delete, reverse, sort, display.
Write code for doubly linked list with add, delete, reverse, sort, display.
How to delete node if only address of node to be deleted is given.
Write code for creating mirror of given binary tree using C.
How to find same ancestor of tree.
How to find size of structure without using sizeof operatar?
How to declare different function pointers? 
How to check MACRO is defined or not in C? 
How to call cpp from for c and vice-versa.
Write a program to calculate the size of the structure with out using sizeof?
write a program to print ur name with out using conditional statements and conditional operators? 
Write a program to calculate sum of the indivisual digits until it becomes one digit?(ex:123456 sum is 21 and 21 sum is 3) 
Explain different elements of Makefile.
How to used Automake and Autoconf for building C/C++ libraries.
How to create shared library.