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Topic :: Apache Hadoop





Apache Hadoop Interview Questions
Questions Answers Views Company eMail

Have you ever used counters in hadoop?

 453

What are some typical functions of job tracker in hadoop?

 474

Can you define inputsplit in hadoop?

 514

What are the main components of hadoop?

 475

Can you explain sequence file in hadoop?

 447

What is the use of recordreader in hadoop?

 457

What is the number of default partitioner in hadoop?

 473

Can you explain hadoop streaming?

 450

What is job tracker role in hadoop?

 516

How many daemon processes run on a hadoop cluster?

 492

Suppose hadoop spawned 100 tasks for a job and one of the tasks failed. What will hadoop do?

 512

Which operating system(s) are supported for production hadoop deployment?

 463

Why is checkpointing important in hadoop?

 502

What are the differences between hadoop 1 and hadoop 2?

 468

Why do the nodes are removed and added frequently in a hadoop cluster?

 502



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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