Explain the differences between a Data Lake and a Data Warehouse.
SQLeasy
3
What is the most difficult task you've ever worked on?
Behavioraleasy
4
What is the difference between a clustered and non-clustered index?
SQLeasy
5
When would you architecturally choose Dataset[T] over DataFrame in a Scala Spark pipeline, and what are the scalability and portability trade-offs? Include type-safety benefits vs. operational constraints.
Spark/Big Dataeasy
6
What are your strengths and weaknesses?
Behavioraleasy
7
Introduce yourself, highlighting key projects and tech stacks
Behavioraleasy
8
What database would you choose for handling transactional and non-transactional data? Why?
Behavioraleasy
+20 More Questions with Expert Answers
Get the complete 1,800+ question library with detailed, expert-level answers covering SQL, Spark, System Design, Python, Cloud, and Behavioral topics.