Hi, yesterday I gave three rounds for microsoft for azure hyderabad team.
Round 1 was around DSA. Word count problem. Result from recruiter: Strong hire
Round 2 was System design around computer fundamentals/OS concept: Result from recruiter: Strong hire
Round 3 had this question where one variable might be updated my multiple process and I need to write the code for getData and updateData. I explained the concepts of mutex, semphores, lease etc. Was writing sempahores from the scratch. However, I felt he was not convinced
Recruiter told the result is not postive for 3rd round. He asked me to study for the topics which I lacked in 3rd round

Now I have AA round tomorrow with hiring manager. Any suggestions what to study for AA round and also any psuedo code for the 3rd round problem?