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Topic :: Apache Hadoop





Apache Hadoop Interview Questions
Questions Answers Views Company eMail

In which kind of scenarios MapReduce jobs will be more useful than PIG in Hadoop?

 599

How to overwrite an existing output file/dir during execution of Hadoop MapReduce jobs?

 592

How to compress mapper output in Hadoop?

 632

Why is Apache Spark faster than Hadoop MapReduce?

 607

Where is the output of Mapper written in Hadoop?

 716

Compare Pig vs Hive vs Hadoop MapReduce?

 627

How to submit extra files(jars, static files) for Hadoop MapReduce job during runtime?

 600

Why is output file name in Hadoop MapReduce part-r-00000?

 573

Which among the two is preferable for the project- Hadoop MapReduce or Apache Spark?

 555

Explain the process of spilling in Hadoop MapReduce?

 584

What are the disservices of utilizing Apache Spark over Hadoop MapReduce?

 581

Compare Hadoop and Spark?

 305

Is it possible to run Spark and Mesos along with Hadoop?

 263

List some use cases where Spark outperforms Hadoop in processing.

 268

Is it necessary to start Hadoop to run any Apache Spark Application ?

 262



Related Topics


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