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

Apache Hadoop (394)
MapReduce (354)
Apache Hive (345)
Apache Pig (225)

Apache Ambari (93)
Apache HCatalog (34)
Apache HDFS Hadoop Distributed File System (214)
Apache Kafka (189)

Hadoop Interview Questions

Questions Answers Views Company eMail

What is the driver program in spark?

294

What is spark submit?

287

How do I clear my spark cache?

273

What is a partition in spark?

367

What is spark vectorization?

315

What is off heap memory in spark?

305

What is a tuple in spark?

285

Is spark an etl?

294

How is rdd distributed?

325

What are the common transformations in apache spark?

288

What is the difference between dataset and dataframe in spark?

364

What is distributed cache in spark?

355

What is catalyst framework in spark?

308

How is dag created in spark?

289

What does spark do during speculative execution?

331

Un-Answered Questions { Hadoop }

In what ways sparksession different from sparkcontext?

339

What are the different modes in which PIG can run and explain those?

493

What is Apache Hive?

825

What is spark checkpointing?

293

Can you explain spark streaming?

307

Explain map-only job?

526

Is it necessary to learn hadoop for spark?

298

What do you understand about yarn?

285

What is gossip protocol in Cassandra?

What is structured data?

649

What are the scalar data types in Pig?

605

What is full form of rdd?

388

What does flatten do in pig?

716

What are nodes and ephemeral nodes?

What is the Use of SSH in Hadoop ?

959

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