Softimize interview questions

First, they gave me a home task - based on databases usage and efficiency, took about 2 hours. The second interview, with team leader: three questions based on multithreading and OOP. Unforthenetly the interviewer wasn't nice and asked the question in a way that I couldn't understand what he wants.

The hiring process began with a mail (not even a phone call) demanding a homework assignment. The next stage in the process was an on site interview asking about java knowledge and os (thread and process) The next stage was a *large(!)* project to implement Cache of Entities. (Design in the office and work at home) Didn't pass this one. After working a week on it :( The next stage was intended to be talking on project of your own and after that an HR interview.