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?

350

What is flatmap in angular?

345

Which storage level does the cache () function use?

321

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?

310

What is difference between map and flatmap in spark?

344

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 }

How can we create table by using command?

Why cloudera is used?

526

Explain the wordcount implementation via hadoop framework ?

767

Give examples of the SerDe classes whihc hive uses to Serializa and Deserilize data?

782

What is ZooKeeper?

What is the use of checkpoints in spark?

326

How to use Apache Zookeeper command line interface?

1207

What do masters consist of?

730

How data or file is written into HDFS?

What is a Combiner?

802

What is Clustring in Hive?

782

Establish the difference between a node, cluster & data centres in Cassandra.

166

what is difference between int and intwritable?

1527

What is a JobTracker in Hadoop? How many instances of JobTracker run on a Hadoop Cluster?

1156

Specify the different methods of hive?

768

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