Answer / Neeraj P Singh

"Resilient Distributed Datasets (RDD) are the basic data structure of Apache Spark. An RDD is an immutable distributed collection of objects that can be processed in parallel across a cluster. For example, you can create an RDD from a list of integers using the `spark.sparkContext.parallelize()` method like so: `val rdd = sparkContext.parallelize(Array(1, 2, 3, 4))`."n

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Explain the term paired RDD in Apache Spark?

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Name various types of Cluster Managers in Spark.

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Does spark use java?

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