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Topic :: Apache Hadoop





Apache Hadoop Interview Questions
Questions Answers Views Company eMail

Use of Codegen command in Hadoop sqoop?

 5

Use of Help command in Hadoop sqoop?

 5

What are the disadvantages of using Apache Spark over Hadoop MapReduce?

 475

How can you launch Spark jobs inside Hadoop MapReduce?

 331

How can you compare Hadoop and Spark in terms of ease of use?

 302

Which one will you choose for a project –Hadoop MapReduce or Apache Spark?

 327

How Spark uses Hadoop?

 311

What is Hadoop serialization?

Capital One,

740

What are the Data extraction tools in Hadoop?

 90

HCatalog helps to Integrate Hadoop with everything. Explain?

 5

How many layers of Hadoop components are supported by Apache Ambari and what are they?

 91

What is the relationship between Hadoop, HBase, Hive and Cassandra ?

 149

What is the difference between Cassandra and Hadoop ?

 82

What is Hadoop HDFS – Hadoop Distributed File System?

 48

Why is block size set to 128 MB in Hadoop HDFS?

 127



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?

956

What are the core components of Apache Hadoop?

816

What is the difference between Apache Hadoop and RDBMS?

841

How is security achieved in Apache Hadoop?

952

What is Apache Hadoop?

892

What is a “Distributed Cache” in Apache Hadoop?

811

What is the problem with small files in Apache Hadoop?

833

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?

829

What is Safemode in Apache Hadoop?

770