C Pointer Interview questions

Why would you like to apply for this post and why did you specifically choose this field?
Why do you use macros in C programming? Can you give me one advantage and a disadvantage for doing so?
How can you determine when there is a memory leak?
In a singly linked list if you have to delete a pointer to a node, what are the steps that you would follow?
Explain the significance of using text and binary modes and when are they used?
What is the extent to which you would be using a pointer in C?
Giving an example of a real scenario, explain when a pointer can be used to a function.
What is more preferable between an array and a pointer and why?
What would you recommend to aspiring C professionals?
What are your salary expectations from us?
Would you like to add anything else to your resume?