Allscripts interview questions in Raleigh

after getting through HR on phone, I was brought in to meet with manager. Manager approved me, but then I had to meet with 2 other managers, and with director. After everyone approved, I was made an offer, and started within 2 weeks.

Handed in my resume on campus career fair, had the first HR interview the day after. Basic questions about the project experience and the certain knowledge of web application, what I know about their company and what I want to learn from the work. She even asked my expectation for the salary. After that, a week later I have the technical phone screen interview. Qs: 1. What is OOP 2. difference between interface and abstract class 3. design pattern 4. web server 5. user authorization and authentication 6. SQL transaction 7. multi-treading 8. difference btwn process and thread 9. when do we need recursive