Oracle Database Discussions

Hi All,

I have been appearing technical Oracle DBA job interviews. I have faced my 1st interview before five days back.
They asked me too many tricky dba interview questions with some real time scenario based which I didn't face before this interview in my career. I have some experince but still i didn't clear my interview. So i have some DBA interview questions but all are very old questions and answers. I want some new book for Oracle DBA interview questions which cover all kind of tricky questions with Explanations? I need to buy this book for preparing new interview. Any good book available, Please suggest me.

Thanks.