Answer / Prakash Narayan Mishra

"There are two main types of transformations in Apache Spark: Aggregation Transformations (like Reduce, Sum, Count) and Complex Transformations (like Map, FlatMap, Filter, Join, Window, AggregateByKey, Transform)."

Explain Spark Driver?

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Define paired RDD in Apache Spark?

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What is spark dynamic allocation?

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How can data transfer be minimized when working with Apache Spark?

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Why is there a need for broadcast variables when working with Apache Spark?

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What is spark mapvalues?

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What's rdd?

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Compare MapReduce and Spark?

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What is the difference between python and spark?

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What is write ahead log(journaling) in Spark?

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In a very huge text file, you want to just check if a particular keyword exists. How would you do this using Spark?

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What are the various levels of persistence in Apache Spark?

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