I submitted my resume to many recruiters in LinkedIn and one of them sent me a document. This doc had one algorithm question which was easy and one system design problem with 3 questions. I took two days to solve the system design question. Two weeks later, I was setup for onsite interview at Seattle. They covered travel, accommodation and dining expenses.
Onsite interview was medium-hard difficulty.
I had 4 rounds starting in the afternoon (no lunch).
All rounds were of 45 min duration with 30min technical and 15min behavorial
1st round - algorithm (interview went good)
2nd round - distributed system (interview was okay)
3rd round - system and object oriented design (bad..)
4th round - bar raiser - algorithm question. (good)
It seemed that each interviewer was targeting on some specific leadership principle during behavioral interview.
Be very prepared with genuine examples where you have demonstrated leadership principles.
Do not let one bad interview round affect the next one.