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questionsgems

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  1. Explain about transformations and actions in the context of RDDs.
    Transformations are functions executed on demand, to produce a new RDD. All transformations are followed by actions. Some examples of transformations include map, filter and reduceByKey.
    What are the languages supported by Apache Spark for developing big data applications?
    Scala, Java, Python, R and Clojure Spark interview

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