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?

331

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 }

How Hadoop is cost-effective?

414

What do slaves consist of?

667

Explain why to use hbase?

157

How to set the number of mappers to be created in MapReduce?

637

Where the mapper's intermediate data will be stored?

635

What is the advantage of hadoop over java serialization?

What happens in text format?

436

How can you debug a pig script?

595

Mention the best features of Apache Sqoop?

How hdfs is different from traditional file systems?

Say what the object inspector functionality is in hive?

752

What are the views in Hive?

665

Why is Reading done in parallel and writing is not in HDFS?

What is the procedure for namenode recovery?

454

Tell the purpose of Bloom Filter in Cassandra?

213

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