What is off heap memory in spark?
What is a tuple in spark?
Is spark an etl?
How is rdd distributed?
What are the common transformations in apache spark?
What is the difference between dataset and dataframe in spark?
What is distributed cache in spark?
What is catalyst framework in spark?
How is dag created in spark?
What does spark do during speculative execution?
What is heap memory in spark?
What is external shuffle service in spark?
What is spark client?
Which are the various data sources available in spark sql?
Can you run spark without hadoop?