These are general guidelines for any interview. Always, prepare for interview and Practice, Practice and Practice
Disclaimer : These question are not in any order or importance
General
Q. Tell us about yourself
Prepare to speak up for at least 3 minutes
Q. Tell us why you are interested in this job –
Do the research about the company and prepare your answer
Q. Do you read any Oracle Magazine/blogs/papers
Q. Are you member of any User Group
Q. Last Question of Interview is always, Do you have question
Prepare your question in advance
Technical
There are two types of technical questions
a) Similar to what is what is being asked at OCA/OCP – terms etc
b) Situation based, such as,
User is getting password expired, what action you are going to take