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Topic :: Apache Hadoop





Apache Hadoop Interview Questions
Questions Answers Views Company eMail

What platform and Java version is required to run Hadoop?

 650

what are the three modes in which Hadoop can be run?

 632

How data is spilt in Hadoop?

 649

what is "map" and what is "reducer" in Hadoop?

 635

What is the difference between Hadoop and RDBMS?

 637

For a Hadoop job, how will you write a custom partitioner?

 658

what happens when Hadoop spawned 50 tasks for a job and one of the task failed?

 695

what is the Hadoop MapReduce APIs contract for a key and value class?

 668

how Hadoop is different from other data processing tools?

 654

what is a sequence file in Hadoop?

 678

What is hadoop role in an enterprise data hub?

 3

Can you explain cdh (cloudera distribution including apache hadoop)?

 3

Which directory does hadoop install to?

 491

Why use hadoop?

 443

What are the actions followed by hadoop?

 466



Related Topics


Un-Answered Questions { Apache Hadoop }

What is Apache Hadoop YARN?

1462

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

1011

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

914

What are the core components of Apache Hadoop?

785

What is the difference between Apache Hadoop and RDBMS?

814

How is security achieved in Apache Hadoop?

916

What is Apache Hadoop?

862

What is a “Distributed Cache” in Apache Hadoop?

787

What is the problem with small files in Apache Hadoop?

784

What is Rack Awareness in Apache Hadoop?

816

Explain Erasure Coding in Apache Hadoop?

756

What is Disk Balancer in Apache Hadoop?

901

What is a speculative execution in Apache Hadoop MapReduce?

798

What are the modes in which Apache Hadoop run?

801

What is Safemode in Apache Hadoop?

736