Define fold() operation in Apache Spark?

319

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Explain reduceByKey() Spark operation?

315

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Explain Spark Streaming with Socket?

345

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Explain Spark SQL caching and uncaching?

346

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What are the different input sources for Spark Streaming?

389

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How do we represent data in Spark?

374

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Explain leftOuterJoin() and rightOuterJoin() operation in Apache Spark?

403

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Explain Spark coalesce() operation?

306

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Explain keys() operation in Apache spark?

350

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What are the roles and responsibilities of worker nodes in the Apache Spark cluster? Is Worker Node in Spark is same as Slave Node?

365

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Explain sum(), max(), min() operation in Apache Spark?

315

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Explain cogroup() operation in Spark?

299

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What is Map() operation in Apache Spark?

383

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Explain Spark saveAsTextFile() operation?

363

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Define paired RDD in Apache Spark?

294

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