Define fold() operation in Apache Spark?

303

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Explain reduceByKey() Spark operation?

298

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Explain Spark Streaming with Socket?

312

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Explain Spark SQL caching and uncaching?

330

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What are the different input sources for Spark Streaming?

371

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How do we represent data in Spark?

355

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

390

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Explain Spark coalesce() operation?

290

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Explain keys() operation in Apache spark?

334

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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?

350

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

299

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Explain cogroup() operation in Spark?

287

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What is Map() operation in Apache Spark?

364

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Explain Spark saveAsTextFile() operation?

340

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Define paired RDD in Apache Spark?

275

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