Oracle Developer interview questions

Interview was entirely from my projects on the resume and a few basic computer architecture concepts. I was asked Cache coherence, branch predictors, memory consistency and Out of Order Tomasulo Algorithm. 7 rounds of 1 hour each. 10 am to 5 pm. Just one interviewer asked puzzles. All other rounds were technical.

It is very technical and intense. They asked a lot of relational database related questions in detail. It looks like they're looking for specific skill set. The interview has gone to coding level. The person sounded kind of rude.