Mensa Brands interview questions

Got an interview call after applying through a referral. The interview process consisted of two technical rounds, one round with the tech lead and the final salary negotiation with the head HR. Round 1 - Big Data Fundamentals (heavy on Pyspark, SQL and Python) Round 2 - DSA + SQL + Data Engineering Fundamentals (easy DSA, easy SQL)

Not good with scheduling the interviews, 10 mins before the time, my interview got rescheduled, which was very weird. The second round was taken when the interviewer was travelling in a car.