I appeared for the recruitment process through college campus hiring. We were around 500 people who appeared for the aptitude test. Oracle was hiring for 2 divisions. The top 70 For Oracle Applications and the next 150 for Oracle Financial Software Services (OFSS) . For Oracle Applications we had to appear for a written technical test whereas the OFSS shortlisted candidates directly proceded to interview. Out of these 70, 15 of us were shortlisted for the technical interview. Ultimately around 15 people were hired for OFSS and 2 of us for Applications. The key is to be honest and try to attempt whatever problems are asked. They are more interested in seeing your approach and attitude in the interview. It is alright if you do not know the answer as long as you give your best. Do not try to lie, be open about what you do not know. The aptitude tests cover your technical concepts and you will be asked about your approach in solving these problems during the interview.