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

When to use coalesce and repartition in spark?

343

Can spark work without hadoop?

353

Can a spark cause a fire?

343

What is scala and spark?

296

Why is spark popular?

295

What causes sparks?

307

Do streamers make money from sparks?

292

Why scala is used in spark?

349

Does spark use zookeeper?

292

Which is better hadoop or spark?

312

Is spark a language?

295

Is spark good for machine learning?

326

What is spark rdd?

309

Does google use spark?

290

How is spark different from hadoop?

308

Un-Answered Questions { Hadoop }

Explain the Reducer's Sort phase?

930

what is composite type in cassandra?

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

What are the main components of a Hadoop Application?

1081

What is the advantage of cassandra?

What is Flume Client?

Explain the various Transformation on Apache Spark RDD like distinct(), union(), intersection(), and subtract()?

314

What is the difference between Apache Pig and Hive?

655

Mention what is the data storage component used by hadoop?

484

Is spark and hadoop same?

282

What are the languages supported by apache spark?

297

What is spark yarn executor memoryoverhead?

374

What are the benefits of lazy evaluation?

317

What is the purpose of sqoop-merge?

shouldn't DFS be able to handle large volumes of data already?

1107

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