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?

339

What is flatmap in angular?

331

Which storage level does the cache () function use?

299

What is difference between coalesce and repartition?

362

What is sc parallelize?

352

What is sc textfile?

335

What is difference between map and flatmap?

298

What is difference between map and flatmap in spark?

322

What is the use of flatmap in spark?

284

Does kafka use hdfs?

498

Is kafka big data?

477

Is kafka part of hadoop?

513

What are brokers in kafka?

503

What is kafka in hadoop?

511

What is kafka technology?

511

Un-Answered Questions { Big Data }

The difference between GROUP and COGROUP operators in Pig?

565

Is piglatin a strongly typed language? If yes, then how did you come to the conclusion?

631

How do you write your own SerDe?

764

Explain the hadoop configuration files at present?

667

Explain what is a sequence file in hadoop?

467

What is HBaseFsck class?

259

What is the use of MasterServer?

174

How to insert records in apache tajo?

Define a worker node?

455

Name the most common Input Formats defined in Hadoop? Which one is default?

464

Explain HCatInputFormat and HCatOutputFormat?

What are mapreduce new and old apis while writing map reduce program?. Explain how it works

651

What is gossip protocol in Cassandra?

What is your favourite tool in the hadoop ecosystem?

958

How is the processing of streaming data achieved in Apache Spark? Explain.

286

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