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 secondary namenode, checkpoint namenode & backupnode?

469

Name the most common input formats defined in hadoop?

443

Which one is default?

486

Is it possible to have hadoop job output in multiple directories?

444

What is tasktracker in hadoop?

430

What is a combiner in hadoop?

510

Have you ever used counters in hadoop?

421

What are some typical functions of job tracker in hadoop?

418

Can you define inputsplit in hadoop?

471

What daemons run on master nodes?

485

Can you explain rack awareness?

433

Can you explain record reader?

435

What are the side effects of not running a secondary name node?

448

What are the main components of hadoop?

432

What do you understand by unit and ()in scala?

494

Un-Answered Questions { Big Data }

Why apache spark is faster than hadoop?

386

what is partitions in hive?

684

Explain the process to trigger automatic clean-up in Spark to manage accumulated metadata.

308

What is a bookie in bookkeeper?

Why hbase is a schema-less database?

184

What is job tracker in Hadoop?

500

Main Components of Hadoop?

769

What is in memory processing in spark?

275

What is difference between regular file system and HDFS?

1057

What are keywords?

How Sqoop word came? Sqoop is which type of tool and the main use of sqoop?

How many operational commands in hbase?

167

What Platforms Cassandra runs on?

What is the job of blend () and repartition () in Map Reduce?

640

Detail description of the Reducer phases?

852

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