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 the job tracker role in hadoop?

1 492

Explain how do you overwrite replication factor?

1 471

Explain how can we check whether namenode is working or not?

1 639

Define a udf?

1 475

Define a sequence file in hadoop?

1 592

Name the operating system(s) which are supported for production hadoop deployment?

1 488

Explain in which directory hadoop is installed?

1 528

List of the some best tools that can be useful for data-analysis?

1 486

Explain the difference between an inputsplit and a block?

1 476

What is the use of cloudera?

1 498

Explain about the indexing process in hdfs?

1 90

Explain what is difference between an input split and hdfs block?

1 92

Replication causes data redundancy then why is pursued in hdfs?

1 66

Since the data is replicated thrice in hdfs, does it mean that any calculation done on one node will also be replicated on the other two?

1 58

If a particular file is 50 mb, will the hdfs block still consume 64 mb as the default size?

1 58

Un-Answered Questions { Big Data }

What is a Hive variable? What for we use it?

854

What is the latest version of ambari that is available in the present market?

Can We Change settings within Hive Session? If Yes, How?

836

How job tracker schedules an assignment?

472

Which modes can Hadoop be run in? List a few features for each mode?

517

What is the roadmap for apache mahout version 1.0?

What is the function of UNION and SPLIT operators? Give examples?

578

What is meant by Transformation? Give some examples.

328

How to set property in apache tajo?

What is the latest version of sqoop?

did you maintain the hadoop cluster in-house or used hadoop in the cloud?

1059

What is the latest version of spark?

288

Can free-form SQL queries be used with Sqoop import command? If yes, then how can they be used?

What is the roadmap for apache driver version one.0?

How can I delete the above index named index_bonuspay?

777

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