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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?

 641

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

 627

How data is spilt in Hadoop?

 644

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

 633

What is the difference between Hadoop and RDBMS?

 632

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

 651

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

 691

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

 668

how Hadoop is different from other data processing tools?

 646

what is a sequence file in Hadoop?

 677

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?

 485

Why use hadoop?

 436

What are the actions followed by hadoop?

 466



Related Topics


Un-Answered Questions { Apache Hadoop }

What is Apache Hadoop YARN?

1456

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

1006

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?

751

What is Disk Balancer in Apache Hadoop?

889

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?

735