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 is the difference between rdd and dataframe?

349

What is flatmap in angular?

345

Which storage level does the cache () function use?

319

What is difference between coalesce and repartition?

384

What is sc parallelize?

372

What is sc textfile?

351

What is difference between map and flatmap?

308

What is difference between map and flatmap in spark?

342

What is the use of flatmap in spark?

302

Does kafka use hdfs?

534

Is kafka big data?

522

Is kafka part of hadoop?

562

What are brokers in kafka?

556

What is kafka in hadoop?

574

What is kafka technology?

562

Un-Answered Questions { Big Data }

What happens if the block on Hadoop HDFS is corrupted?

If the source data gets updated every now and then, how will you synchronize the data in hdfs that is imported by sqoop?

164

What is an input reader in reference to mapreduce?

665

what are the main components of cassandra data model?

What does connector api in kafka?

564

What is spark certification?

328

What is Starvation scenario in spark streaming?

359

What are the default read and write classes in Hive?

704

Define a metadata?

705

What are the three steps involved in big data?

569

State some disadvantages of impala?

What are the Difference between MongoDB and Cassandra?

What is the primary objective of NoSQL databases?

What is the most widely recognized info formats characterized in hadoop?

489

Define Mem-table in Cassandra?

187

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