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

Big Data Interview Questions

Questions Answers Views Company eMail

Mention what is the data storage component used by hadoop?

446

Mention what does the text input format do?

414

Mention what daemons run on a master node and slave nodes?

469

Explain what is namenode in hadoop?

438

Explain what is a sequence file in hadoop?

467

Mention how many inputsplits is made by a hadoop framework?

577

Explain what is jobtracker in hadoop? What are the actions followed by hadoop?

407

Explain is it possible to search for files using wildcards?

478

Explain what is hadoop?

434

Explain what is sequencefileinputformat?

456

Mention how hadoop is different from other data processing tools?

409

Mention what are the most common input formats defined in hadoop?

442

Mention what is rack awareness?

381

Mention what is the difference between an rdbms and hadoop?

424

Mention what are the three modes in which hadoop can be run?

419

Un-Answered Questions { Big Data }

How Facebook Uses Hadoop, Hive and Hbase ?

707

What are the different life cycle commands in ambari?

how JobTracker schedules a task ?

850

What is flume agent?

Why cloudera is used?

476

Is it possible to have hadoop job output in multiple directories? If yes, how?

452

Explain the top() and takeordered() operation?

326

What bit version that ambari needs and also list out the operating systems that are compatible?

How can we check whether namenode is working or not?

659

I have a relation r. How can I get the top 10 tuples from the relation r?

568

how will you implement SQL in Spark?

377

What is a bloom filter?

162

What is optimal size of a file for distributed cache?

636

Where sorting is done on mapper node or reducer node in MapReduce?

673

Explain slot in Hadoop Map-Reduce v1?

688

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