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Apache Spark Interview Questions
Un-Answered Questions { Apache Spark }
Why spark is faster than hadoop?
By Default, how many partitions are created in RDD in Apache Spark?
Explain Spark leftOuterJoin() and rightOuterJoin() operation?
How tasks are created in spark?
Explain write ahead log(journaling) in spark?
What database does spark use?
In a given spark program, how will you identify whether a given operation is Transformation or Action ?
Explain transformation in rdd. How is lazy evaluation helpful in reducing the complexity of the system?
What is spark vectorization?
What is mlib in apache spark?
What causes breaker to spark?
Do you know the comparative differences between apache spark and hadoop?
What is the difference between reducebykey and groupbykey?
What is vectorized query execution?
What is spark application?
