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?

341

What is flatmap in angular?

333

Which storage level does the cache () function use?

301

What is difference between coalesce and repartition?

364

What is sc parallelize?

356

What is sc textfile?

337

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?

287

Does kafka use hdfs?

504

Is kafka big data?

483

Is kafka part of hadoop?

515

What are brokers in kafka?

509

What is kafka in hadoop?

526

What is kafka technology?

521

Un-Answered Questions { Big Data }

What is the significance of cluster class in Cassandra?

List some use cases where classification machine learning algorithms can be used.

473

What is javardd?

294

Explain what does the conf.setMapper Class do in MapReduce?

661

What are the use cases of Apache Pig?

808

What is the meaning of compaction in hbase?

167

What is the number of default partitioner in hadoop?

442

What size is recommended for each node?

214

When do you call the cleanup method?

530

What is the biggest shortcoming of Spark?

319

What do shuffling do?

682

Which operating system(s) are supported for production hadoop deployment?

435

how can you check whether Namenode is working beside using the jps command?

677

What are the names of daemons in impala?

Which language is more suitable for text analytics? R or python?

439

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