objective aptitute test

in technical round they ask me many question like in C-What is call by value and call by reference,sorting program etc,in Java they have ask me different between object oriented programing language and procedural programing language,what is object and class,inheritence,thread.in data stucture they ask one question what is data structure

HR roundthey have ask to tell abt myselves ,family background,why I want to join the company etc.

work on communication skills..

Applied near about 50 to 60 and 13 of them where selected.Rank has not mention.

Due to my technical knowledge.