Anonymous Content interview questions

There was an online test of quantitative aptitude having 40 questions to be done in 30 minutes. Then there was an HR round in which they asked few technical questions, but mostly puzzles to analaze your thinking process and communication skills as well. at the end they asked whether you have any question for me (regarding the company).

Their will be 4 rounds for big data engineer Aptitude Coding in 3 languages Approx 2/3 days process Technical skills requirement Databases knowledge Aptitude knowledge Programming knowledge in :- Python Java C++ Big data knowledge like :- Hadoop , Kafka , oozie , sqoop , spark , Scala , hue , hive , zookeeper , mapreduce