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 Hadoop Map Reduce ?

534

what does the text input format do?

517

What happens when a datanode fails ?

490

In Hadoop, which file controls reporting in Hadoop?

483

how can you debug Hadoop code?

513

For a job in Hadoop, is it possible to change the number of mappers to be created?

488

What are the primary phases of a Reducer?

526

how indexing in HDFS is done?

492

What is the role of a MapReduce partitioner?

501

Is it important for Hadoop MapReduce jobs to be written in Java?

480

what job does the conf class do?

487

What is the key- value pair in Hadoop MapReduce?

400

What is InputFormat in Hadoop MapReduce?

361

What are the various InputFormats in Hadoop?

368

Explain InputSplit in Hadoop MapReduce?

387

Un-Answered Questions { Big Data }

Do I need to install hadoop for spark?

179

What is hive on spark?

226

when to choose “internal table” and “external table” in hive?

397

What are the features of kafka?

315

Explain edge nodes in hadoop?

242

Why is cqlsh used?

108

What is the process of creating ambari client?

what Hive query processor does?

401

State some disadvantages of impala?

How does a log flume work?

For a Hadoop job, how will you write a custom partitioner?

385

Who invented hadoop?

408

Explain api create or replace tempview()?

216

Explain the data model of hbase.

123

Define yum?

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