Apache Hadoop Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Apache Hadoop Interview Questions

Questions Answers Views Company eMail

How to enable trash/recycle bin in hadoop?

684

What is small file problem in hadoop?

714

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

641

What exactly is hadoop?

641

Can we do online transactions(oltp) using hadoop?

620

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?

645

What is output format in hadoop?

647

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

704

What hadoop does in safe mode?

609

What is inputformat in hadoop?

697

Explain how input and output data format of the hadoop framework?

657

when hadoop enter in safe mode?

687

How to enable recycle bin or trash in hadoop?

649

Whats is distributed cache in hadoop?

633

what should be the ideal replication factor in hadoop?

611

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Un-Answered Questions { Apache Hadoop }

How is HDFS fault tolerant?

993

Define a datanode?

593

Give the use of the bootstrap panel.

633

What do you understand from Node redundancy and is it exist in hadoop cluster?

1183

What is Hadoop Custom partitioner ?

950

Is a job split into maps?

987

Is hadoop a database?

623

What is the jobtracker and what it performs in a hadoop cluster?

600

Why password is needed in ssh localhost?

730

Explain the use of tasktracker in the hadoop cluster?

601

How can you connect an application

982

What is the problem with small files in Apache Hadoop?

726

What is hadoop framework?

662

Can we call vms as pseudos?

621

How the HDFS Blocks are replicated?

902

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