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 does the mapred.job.tracker command do?

434

Is it possible to rename the output file, and if so, how?

465

What are the Hadoop features extended to its eco-system components ?

442

What is job tracker in Hadoop?

503

What sorts of actions does the job tracker process perform?

422

What are the main components in Hadoop Eco-System and what are their functions ?

497

Name the most common Input Formats defined in Hadoop? Which one is default?

466

What is the block size in Hadoop?

438

Can you give some examples of Big Data?

479

After the Map phase finishes, the Hadoop framework does 'Partitioning, Shuffle and sort'. Explain what happens in this phase?

475

What is streaming in Hadoop?

442

What is a commodity hardware? Does commodity hardware include RAM?

519

What is streaming access?

500

How can you set an arbitrary number of Reducers to be created for a job in Hadoop?

476

Give examples of some companies that are using Hadoop structure?

440

Un-Answered Questions { Big Data }

What are sink processors?

919

What is the use of foreach operation in Pig scripts?

594

When to use –target-dir and when to use –warehouse-dir while importing data?

Define the Use of Pig?

555

Kafka can be used for which kind of applications?

508

What are the hadoop's three configuration files?

705

Is a log flume a roller coaster?

What is configuration of a typical slave node on Hadoop cluster? How many JVMs run on a slave node?

1039

What is apache spark engine?

300

If a Replica stays out of the ISR for a long time, what does it signify?

638

How can you achieve high availability in Apache Spark?

433

Is apache spark going to replace hadoop?

357

What is Disk Balancer in Apache Hadoop?

904

If DataNode increases, then do we need to upgrade NameNode?

555

What is hadoop? Name the main components of a hadoop application?

447

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