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

Big Data Interview Questions

Questions Answers Views Company eMail

What are shared variables in spark?

304

What is the future of apache spark?

279

How can I improve my spark performance?

286

What is apache spark architecture?

317

Why spark is faster than hive?

303

What happens if rdd partition is lost due to worker node failure?

454

What is pair rdd in spark?

287

What is difference between cache and persist in spark?

275

Is bigger than spark driver maxresultsize?

296

Does spark use java?

323

How do you process big data with spark?

279

What is a spark shuffle?

334

Why do we need apache spark?

271

How do I optimize my spark code?

306

What is the difference between client mode and cluster mode in spark?

320

Un-Answered Questions { Big Data }

What is the use of explode in Hive?

729

What is a tuple in spark?

285

Why use hadoop?

436

What is difference the between sqoop and distcp?

What is difference between client and cluster mode in spark?

383

What is a MapReduce Combiner?

795

Explain about Hadoop file system and processing framework?

424

How to write 'foreach' statement for bag datatype in pig scripts?

687

What does a Spark Engine do?

325

Why scala is used in spark?

328

How you can contact your client everyday ?

974

What are different logging levels in cassandra?

What is the difference between a node, a cluster, and data centre?

254

Describe coalesce() operation. When can you coalesce to a larger number of partitions? Explain.

330

How Cassandra stores data?

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