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 mllib?

294

What is meant by rdd lazy evaluation?

417

What is the difference between spark and apache spark?

335

What rdd stands for?

335

How does spark rdd work?

333

What is spark databricks?

337

What does apache spark stand for?

302

What are the libraries of spark sql?

308

What is the use of spark sql?

290

What is sparksession and sparkcontext?

281

Should I install spark on all nodes of yarn cluster?

356

How do I get apache spark on windows 10?

309

Where are rdd stored?

307

What is shuffle in spark?

419

Do I need to install hadoop for spark?

292

Un-Answered Questions { Hadoop }

What are the various programming languages supported by Spark?

371

How often do you need to reformat the namenode?

552

What is Streaming / Log Data?

What is Block in HDFS?

Define column families?

178

What is the function of UNION and SPLIT operators? Give examples?

565

Can the region server will be located on all datanodes?

322

What is the difference between apache mahout and prediction.io ?

How can you launch Spark jobs inside Hadoop MapReduce?

331

How namenode handles data node failures?

566

Should I install spark on all nodes of yarn cluster?

356

State the difference between Spark SQL and Hql

367

How to enable recycle bin or trash in hadoop?

734

What is Spark.executor.memory in a Spark Application?

313

What are the four modules that make up the Apache Hadoop framework?

593

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