Domande di colloquio per Senior Java/J2EE Developer presso Equality Health

They will give you test in such a high difficulty, even google or amazon will not give you but they are simply some small scale healthcare company who will only hire citizens. They gave me test, and i have answered two questions correct. third question i have not bothered because it is like a huge project. I have 20 years of experience i could not complete it and no one can complete.