Answer / Sampurnanand Tripathi

Apache Spark was created by Matei Zaharia and his team at UC Berkeley in 2009 as a part of their research project, Shark. In 2013, it became an open-source project under the Apache Software Foundation.

List some use cases where Spark outperforms Hadoop in processing.

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What is the difference between reducebykey and groupbykey?

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How to start and stop spark in interactive shell?

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What is RDD?

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Do I need to install hadoop for spark?

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What is scala spark?

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How many ways we can create rdd?

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What do we mean by Partitions or slices?

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How do I download and install spark?

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Is cache an action in spark?

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If there is certain data that we want to use again and again in different transformations, what should improve the performance?

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What do you understand by receivers in Spark Streaming ?

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