Soft Tech Source interview questions

First there was pre placement talk followed by written test organized by cocubes. aptitude very easy english not too hard databse good one coding in c or java after written of 200 students , 50 students were short listed ,I was among them. THEN there was technical round of 1hour at least. in that he asked me about database such as normalization , keys , coding in c like to make printf function, fibonnaci etc operating system Java oops after that 14 students were shortlisted , i was among them too then there was HR round in that which was just formality ATlast 14 students were selected.