Big Data Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Big Data Interview Questions

Questions Answers Views Company eMail

List some commonly used Machine Learning Algorithm Apache Spark?

292

What is the command to start and stop the Spark in an interactive shell?

315

List out the ways of creating RDD in Apache Spark?

289

What are the various advantages of DataFrame over RDD in Apache Spark?

309

What is flatmap in apache spark?

327

What is the standalone mode in spark cluster?

271

Explain apache spark streaming? How is the processing of streaming data achieved in apache spark?

306

In what ways sparksession different from sparkcontext?

343

Explain fold() operation in spark?

309

Define sparkcontext in apache spark?

315

List out the various advantages of dataframe over rdd in apache spark?

307

What is map in apache spark?

279

Write the command to start and stop the spark in an interactive shell?

274

Define various running modes of apache spark?

282

What are the ways to run spark over hadoop?

312

Un-Answered Questions { Big Data }

What are the challenges Of Distributed Applications?

Is it possible to provide multiple input to Hadoop? If yes then how can you give multiple directories as input to the Hadoop job?

432

What are the primitive data types in Pig?

543

What are the different operational commands in HBase at record level and table level?

361

How to create an rdd?

300

Can you join multiple fields in Apache

533

What is a IdentityMapper and IdentityReducer in MapReduce ?

948

What is data ingestion pipeline?

321

Explain about the indexing process in hdfs?

What is Hive query processor?

927

What is identity mapper and reducer? In which cases can we use them?

1006

Define HRegionServer in HBase

157

What is a bookkeeper client in bookkeeper?

It can be possible that a Job has 0 reducers?

965

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

439

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