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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?

 535

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

 2726

Why is pig used in hadoop?

 570

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

 963

What is the difference between rdbms and hadoop?

 644

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

 661

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

 718

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

 780

Is it necessary to know java to learn hadoop?

 663

What is the sequencefileinputformat in hadoop?

 713

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

 686

Which data storage components are used by hadoop?

 666

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

 657

What are the network requirements for using hadoop?

 684



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Un-Answered Questions { Apache Hadoop }

What is Apache Hadoop YARN?

1454

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

1005

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

907

What are the core components of Apache Hadoop?

784

What is the difference between Apache Hadoop and RDBMS?

807

How is security achieved in Apache Hadoop?

909

What is Apache Hadoop?

851

What is a “Distributed Cache” in Apache Hadoop?

777

What is the problem with small files in Apache Hadoop?

783

What is Rack Awareness in Apache Hadoop?

811

Explain Erasure Coding in Apache Hadoop?

750

What is Disk Balancer in Apache Hadoop?

887

What is a speculative execution in Apache Hadoop MapReduce?

793

What are the modes in which Apache Hadoop run?

800

What is Safemode in Apache Hadoop?

733