Answer / Neeraj Sahu

Resilient Distributed Datasets (RDDs) are the fundamental data structure in Apache Spark. They are fault-tolerant distributed collections of objects that can be processed in parallel.

Explain Accumulator in Spark?

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What are accumulators in Apache Spark?

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What happens when we submit a spark job?

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Can I run Apache Spark without Hadoop?

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Explain catalyst query optimizer in Apache Spark?

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What is salting in spark?

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Is there a module to implement sql in spark? How does it work?

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Is spark written in java?

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How can you compare Hadoop and Spark in terms of ease of use?

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What is the difference between spark and python?

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What is number of executors in spark?

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