Do we need hadoop for spark?
What is aggregatebykey spark?
What is rdd in spark with example?
Is apache spark a framework?
What is the spark driver?
What is big data spark?
How does lazy evaluation work in spark?
What is the use of dataframe in spark?
When should you use spark cache?
How do I start a spark server?
What is executor and driver in spark?
Is apache spark an etl tool?
What is a spark context?
Where is rdd stored?
What is apache spark engine?