Here are some questions that may be asked for Data Scientist (BigData platform) job interview. They can break down to 2 areas: technical knowledge/skill and communication skill:
Technical area:
What is the differences between regression and classification problem?
How do you feature selection?
How do you access the accuracy of your model?
What data and how you build model for inventory prediction?
How do you come to know and start using Spark?
What performance tuning have you tried for Spark?
What are the benefit/differences of file compression schemas for Big Data such as Avro, Parquet, Orc, etc?
Why are small files bad for Hadoop?
Communication:
How do you explain the concept of Machine Learning to a first grade kid?
How do you explain to your business partners when you miss the deadline?
How do you handle the situation when your business partners reject your model?
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