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Topic :: Apache Hadoop





Apache Hadoop Interview Questions
Questions Answers Views Company eMail

Have you ever used counters in hadoop?

 421

What are some typical functions of job tracker in hadoop?

 418

Can you define inputsplit in hadoop?

 479

What are the main components of hadoop?

 432

Can you explain sequence file in hadoop?

 410

What is the use of recordreader in hadoop?

 421

What is the number of default partitioner in hadoop?

 441

Can you explain hadoop streaming?

 422

What is job tracker role in hadoop?

 477

How many daemon processes run on a hadoop cluster?

 458

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

 482

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

 428

Why is checkpointing important in hadoop?

 472

What are the differences between hadoop 1 and hadoop 2?

 436

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

 475



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Un-Answered Questions { Apache Hadoop }

What is Apache Hadoop YARN?

1461

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

1010

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

914

What are the core components of Apache Hadoop?

784

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