Microsoft Software Development Engineer I interview questions

First I had one Codility Online Test which contained 2 questions to complete in about 80 mins. One question was on numbers processing, it is on Internet & if one has seen that number question or knows that number system then solve with best performance, as I was able to get 40% in performance with my standard soln. Second question was on Text data processing which is not difficult also. So overall Codility Questions were average. Then I had one round of discussion where the interviewer asked me to write the code to solve one problem, my approach couldn't have worked properly so he gave the hint but I was not able to complete the code in next 30 mins. In 2nd round, I was asked to design a system, for which I made one rough & very high level kind of design & interviewer was expecting more clear & modularized design. Though every interviewer claims that they don't expect everyone to know everything but still in interviews they expect the correct, good & production ready answers for their specific 1-2 questions. Many other things too but in short, reality of these companies will be far from what they claim, I think so.

Some weird tricks. For example, when I finished writing up my proposed solution, the interviewer drew a line on the board and asked me if I was confident enough in my solution to sign my name to it. Very bizarre test of overconfidence...I did not sign my name but don't appreciate those types of mind games in an interview.