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Topic :: Apache Hadoop





Apache Hadoop Interview Questions
Questions Answers Views Company eMail

In hadoop_pid_dir, what does pid stands for?

 474

What are the network requirements for hadoop?

 447

What does hadoop-env.sh do?

 404

Which are the three modes in which hadoop can be run?

 415

Where is hadoop-env.sh file present?

 446

Can we use windows for hadoop?

 440

What are the hadoop configuration files at present?

 428

Can we create a hadoop cluster from scratch?

 396

What happens if you get a ‘connection refused java exception’ when you type hadoop fsck /?

 412

In which directory hadoop is installed?

 360

Does hadoop follows the unix pattern?

 387

What is the hadoop-core configuration?

 434

Give some points of hive for hadoop ?

 672

Which instance will you use for deploying a 4-node hadoop cluster in aws ?

 176

how does hdfs ensure data integrity of data blocks stored in hadoop hdfs?

 37



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Un-Answered Questions { Apache Hadoop }

What is Apache Hadoop YARN?

1416

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

959

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

846

What are the core components of Apache Hadoop?

713

What is the difference between Apache Hadoop and RDBMS?

737

How is security achieved in Apache Hadoop?

834

What is Apache Hadoop?

800

What is a “Distributed Cache” in Apache Hadoop?

724

What is the problem with small files in Apache Hadoop?

727

What is Rack Awareness in Apache Hadoop?

747

Explain Erasure Coding in Apache Hadoop?

692

What is Disk Balancer in Apache Hadoop?

798

What is a speculative execution in Apache Hadoop MapReduce?

739

What are the modes in which Apache Hadoop run?

744

What is Safemode in Apache Hadoop?

678