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Data engineering interview questions
What is the difference between MapReduce and Spark?
What is the difference between Pandas DataFrame and Spark DataFrame? When would you prefer using each?
What is the difference between external and internal tables in Hive?
What is the difference between head() and take() in PySpark?
What is the difference between managed and external tables in Hive or Spark SQL?
What is the difference between map and flatMap in Spark transformations?
What is the difference between partitions and repartitions in Spark, and when do you use each?
What is the importance of the checkpoint location in Databricks?
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