IBM Software Engineer I interview questions

The phone interview was based on the OOP concepts and a few basic database questions. They just want to know tht whether you have the idea or the base to work Then in 1:1 interview they ask a few indeatils OOP concepts again, n the interview is calm as the interviewer was really nice and if we dont know something she would help by giving hints and aslo explained abt the kinda of work they do very nicely.