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 accumulator in spark?

497

What is executor in spark?

310

Does spark work with python 3?

296

What is number of executors in spark?

296

Is hadoop required for spark?

304

How do you set up a spark?

280

What does apache spark do?

322

What is lambda in spark?

309

What is pyarrow?

417

Is dataframe immutable?

484

What is difference between dataset and dataframe?

389

What is hadoop technology?

311

What is a pipelinedrdd?

439

What is flatmap?

316

What is pipelined rdd?

259

Un-Answered Questions { Big Data }

State some applications of HBase?

167

What are the consistency levels for write operations in Cassandra?

How to read file in HDFS?

What is structured data?

659

Explain Multi-tenancy?

559

What is an identity mapper and identity reducer?

615

Explain the concept of Tunable Consistency in Cassandra?

200

When should you use spark cache?

291

Why scala is used in spark?

329

What are the consistency levels for read operations in Cassandra?

Which database the sqoop metastore runs on?

What is difference between spark and mapreduce?

278

What are the differences between a node, a cluster, and datacenter in Cassandra?

What are problems with small files and hdfs?

What is difference between regular file system and HDFS?

1063

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