IPInfusion interview question

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Technical Round
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1. Write the code to count the number of nodes in Linked List, Write a code in such a way that It run without any warning.
2. Write the code to reverse the linklist. 
3. write the code to find the middle node in linklist. 
4. What is volatile variable. and how to use it. 
5. Write you own strcpy functionality program. 
6. Write the code to recursively print the fibonacci sequence of numbers.
7. Now question start from resume, I will suggest be prepare well for all things what you are mentioning in your resume. I had most of the question from there only. 

HR round
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After couple of days I had HR interview. 
As per me it was interesting and friendly questions. Some question I am mentioning here. 
1. why IpInfusion. 
2. Why you are looking for change. 
3. Some question from academic background. like reason for 1 year gap etc. Again question get raised from what you have mention in resume.