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 difference between hive and spark?

285

What is spark vcores?

295

Who uses apache spark?

370

What is sparkcontext in spark?

285

How many types of rdd are there in spark?

324

What is standalone mode in spark?

362

What is the difference between spark and hive?

338

How is hadoop different from spark?

284

What is data skew in spark?

312

What is a spark standalone cluster?

264

What are the actions in spark?

295

Can I install spark on windows?

297

What happens when an action is executed in spark?

357

Can we broadcast an rdd?

314

Who creates dag in spark?

359

Un-Answered Questions { Big Data }

How to overwrite an existing output file during execution of mapreduce jobs?

1137

Mention what are the main configuration parameters that user need to specify to run mapreduce job?

787

What is JMX?

221

When NameNode enter in Safe Mode?

Why is Cassandra popular? Clarify.

Why do we need spark?

294

What is ZooKeeper Client?

What is data replication in Cassandra?

What is flatmap?

326

How can it help for avoiding costly modeling?

What is a kafka cluster?

588

Can you define what is Event Serializer in Flume?

What is Kundera in Cassandra?

What are apache tajo sql functions?

What is the history of apache mahout? Once did it start?

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