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Topic :: Apache Hadoop





Apache Hadoop Interview Questions
Questions Answers Views Company eMail

What are the two main components of the hadoop framework?

 73

When to use hadoop, hbase, hive and pig?

 569

What is the primary purpose of the pig in the hadoop architecture?

 2761

Why is pig used in hadoop?

 613

What commands are used to see all jobs running in the hadoop cluster and kill a job in linux?

 1003

What is the difference between rdbms and hadoop?

 672

Is it necessary to write jobs for hadoop in the java language?

 708

Which command is used for the retrieval of the status of daemons running the hadoop cluster?

 745

What is the functionality of jobtracker in hadoop? How many instances of a jobtracker run on hadoop cluster?

 825

Is it necessary to know java to learn hadoop?

 697

What is the sequencefileinputformat in hadoop?

 754

What is the difference between hadoop and other data processing tools?

 720

Which data storage components are used by hadoop?

 694

Is it possible to provide multiple inputs to hadoop? If yes, explain.

 697

What are the network requirements for using hadoop?

 717



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Un-Answered Questions { Apache Hadoop }

What is Apache Hadoop YARN?

1490

What are the modules that constitute the Apache Hadoop 2.0 framework?

1041

What is Apache Hadoop? Why is Hadoop essential for every Big Data application?

955

What are the core components of Apache Hadoop?

815

What is the difference between Apache Hadoop and RDBMS?

840

How is security achieved in Apache Hadoop?

951

What is Apache Hadoop?

891

What is a “Distributed Cache” in Apache Hadoop?

809

What is the problem with small files in Apache Hadoop?

832

What is Rack Awareness in Apache Hadoop?

849

Explain Erasure Coding in Apache Hadoop?

791

What is Disk Balancer in Apache Hadoop?

939

What is a speculative execution in Apache Hadoop MapReduce?

821

What are the modes in which Apache Hadoop run?

828

What is Safemode in Apache Hadoop?

769