It took a week approx. I was asked basic questions of Hadoop ecosystem, spark , scala and basic knowledge of python.There were questions of Sqoop, Flume , kafka and ML concepts
Interview questions [1]
Question 1
Why do we use parquet file format ?
Why dataframes are faster than RDD
I applied through a recruiter. I interviewed at HCLTech
Interview
So many call from different consultancy. Didn't receive the link for interview. Suddenly get call for interview. I would suggest to move the interview process from telephonic to video interview .