Oracle Database Administrator DBA interview questions

I applied online through Oracle page, and they contacted me right immediately like on that day which was scary for me. I got an e-mail with to complete some online test with 13 questions and they were on: 25 questions: 15 Analytical Multiple Choice Questions – focusing on sets, trend analysis, calculus, stats, etc. 5 open ended basic SQL question. 3 open ended database normalization question. 1 Multiple Choice English language comprehension question. 1 open ended language question (this part should be 200 – 300 words). The entire online assessment test was conducted through hackerrank.com and it was for 90 min. Personally I did not go and complete the Quiz within couple of day. I did take my time to prepare and I was right. It is a difficult test. I did use apps like ‘the impossible interview’ and ‘the aptitude interview’ from iTunes app store to prepare. They were a help.