Oracle Member Technical Staff interview questions

Applied online and also pushed my resume through an employee. Five rounds of telephone interviews - 4 technical / skill interviews, 1 interview with the HR. First round, I was asked to prepare and send a document explaining in detail all major programming projects done in previous employment / education course work. Second round was on multi-threading programming. Third round on memory management. Fourth technical round on database management and performance. Each round lasted about 45-mins to an hour.