Amdocs interview questions

I have given interview 4 times in single month.In that 2 interviewers have taken perfect interview and i have cleared 90% of that.In remaining 2 interviews they just time passed and wasted my time and money. They don't have time to take interview after calling to their location. I traveled 17 hrs every time for going interview.

Good Knowledge of Interviewer, need to prepare well to proceed in interview. Amdocs is a telecom domain company so domain matters a lot. I was asked easy question on Java Jee which I could easily answer. Thanks.