Microsoft Software Development Engineer SDE interview questions

1 Coding test round - Contacted by recruiter 3 questions - solved 2.5 Got the call for onsite interviews, had 3 technical interviews. They asked OS concepts, OOPS concepts, mainly of processes and producer-consumer problem In first interview was asked 1 question.

On-campus recruitment with OT, Technical Interviews and HR Interview. The questions were from DSA, DBMS AND Operating systems. The technical interview went well until questions from compiler design came. I was not offered the role!