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 do you know about nlineoutputformat?

694

How can we change the split size if our commodity hardware has less storage space?

674

How is hadoop different from other data processing tools?

681

What happens in a textinputformat?

666

Can you explain how do ‘map’ and ‘reduce’ work?

741

Can we call vms as pseudos?

657

What do the master class and the output class do?

668

What does job conf class do?

674

What do you know about keyvaluetextinputformat?

609

Define a namenode?

666

Explain the hadoop-core configuration?

698

Explain the benefits of block transfer?

824

Define a task tracker?

650

Define a metadata?

659

Define a daemon?

674

Un-Answered Questions { Big Data }

How to write data in Hbase using flume?

101

What is winutils hadoop?

435

What is Streaming / Log Data?

Who invented the first spark plug?

236

What are the configuration files in Hadoop?

542

Is fs.mapr.working.dir a single directory?

689

What do you mean by the high availability of a namenode?

Different ways of debugging a job in MapReduce?

1107

Where are hadoop’s configuration files located and list them?

447

What is off heap memory in spark?

305

What are broadcast variables in spark?

328

Is Hive useful when making data warehouse applications?

744

What is the difference between apache mahout and cloudera oryx ?

What is the bag?

537

What is lineage graph in spark?

289

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