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

Big Data Interview Questions

Questions Answers Views Company eMail

Explain the wordcount implementation via hadoop framework ?

724

What is hadoop framework?

722

What is partioner in hadoop? Where does it run,mapper or reducer?

672

What is a task instance in hadoop? Where does it run?

615

How to enable recycle bin in hadoop?

766

How to enable trash/recycle bin in hadoop?

738

What is small file problem in hadoop?

783

What are the default configuration files that are used in hadoop?

691

What exactly is hadoop?

691

Can we do online transactions(oltp) using hadoop?

669

Did you ever built a production process in hadoop ? If yes then what was the process when your hadoop job fails due to any reason?

690

What is output format in hadoop?

683

How to enable/configure the compression of map output data in hadoop?

766

What hadoop does in safe mode?

649

What is inputformat in hadoop?

744

Un-Answered Questions { Big Data }

What is meant by Transformation? Give some examples.

306

Define a worker node?

455

Elaborate on CQL?

What is standalone mode in spark?

343

What are the types of cluster managers in spark?

282

Difference between HBase vs Hive?

724

Explain hive udf function?

528

Do we need hadoop for spark?

297

What do you mean by ZNode?

Explain the general mapreduce algorithm

647

What happens when two clients try to access the same file in the hdfs?

455

What are the main components of spark?’

321

What do you mean by Speculative execution in Apache Spark?

299

Which command do we use to show the version?

160

Is it possible to provide multiple input to Hadoop? If yes then how?

502

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