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

Big Data Interview Questions

Questions Answers Views Company eMail

Does spark need hadoop?

286

How do I install spark?

275

Does hadoop install spark?

290

What is the difference between rdd and dataframe in spark?

352

Is spark difficult to learn?

306

Where is spark used?

367

What is apache spark core?

307

What is in memory in spark?

283

Why is apache spark so fast?

285

What is spark database?

336

What languages support spark?

292

When to use coalesce and repartition in spark?

321

Can spark work without hadoop?

336

Can a spark cause a fire?

331

What is scala and spark?

271

Un-Answered Questions { Big Data }

Can you define data lake?

512

What is CTAS Table in Hive?

751

Who invented hadoop?

692

Define Node?

201

What is spark vs scala?

269

Can you explain spark sql?

322

What is executor and driver in spark?

289

What are some of the interesting facts about Big Data?

635

What combiners are and when you should use a combiner in a mapreduce job?

605

What is the purpose of Sqoop List Tables?

Which are the methods in the mapper interface?

642

What do you mean by Free Form Import in Sqoop?

How often DataNode send heartbeat to NameNode in Hadoop?

545

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

In HDFS, how Name node determines which data node to write on?

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