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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?

 692

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

 672

How data is spilt in Hadoop?

 690

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

 681

What is the difference between Hadoop and RDBMS?

 679

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

 708

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

 736

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

 705

how Hadoop is different from other data processing tools?

 696

what is a sequence file in Hadoop?

 731

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?

 518

Why use hadoop?

 472

What are the actions followed by hadoop?

 502



Related Topics


Un-Answered Questions { Apache Hadoop }

What is Apache Hadoop YARN?

1492

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

1042

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

958

What are the core components of Apache Hadoop?

819

What is the difference between Apache Hadoop and RDBMS?

844

How is security achieved in Apache Hadoop?

954

What is Apache Hadoop?

892

What is a “Distributed Cache” in Apache Hadoop?

815

What is the problem with small files in Apache Hadoop?

835

What is Rack Awareness in Apache Hadoop?

850

Explain Erasure Coding in Apache Hadoop?

792

What is Disk Balancer in Apache Hadoop?

940

What is a speculative execution in Apache Hadoop MapReduce?

822

What are the modes in which Apache Hadoop run?

831

What is Safemode in Apache Hadoop?

773