Big Data Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Big Data Interview Questions

Questions Answers Views Company eMail

Explain Spark SQL caching and uncaching?

346

What are the different input sources for Spark Streaming?

389

How do we represent data in Spark?

374

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

403

Explain Spark coalesce() operation?

310

Explain keys() operation in Apache spark?

352

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

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

316

Explain cogroup() operation in Spark?

299

What is Map() operation in Apache Spark?

385

Explain Spark saveAsTextFile() operation?

363

Define paired RDD in Apache Spark?

294

Explain different transformations in DStream in Apache Spark Streaming?

343

Explain pipe() operation in Apache Spark?

327

What are the ways to create RDDs in Apache Spark? Explain.

328

Un-Answered Questions { Big Data }

What is ZooKeeper Client?

Explain the top() and takeordered() operation?

350

Is there any API available for implementing graphs in Spark?

322

Tell any two feature Flume?

What does spark do during speculative execution?

348

is HQL case sensitive?

906

Discuss and explain the various types of partitioners in cassandra?

What are the different types of tables available in Hive?

742

What are the exact differences between reduce and fold operation in Spark?

465

What is impala?

130

What are the advantage of spark?

304

What are the transformations in spark?

302

Define column families?

178

How to restrict the number of lines to be printed in pig ?

629

What is hector?

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