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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?

 442

How can you launch Spark jobs inside Hadoop MapReduce?

 305

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

 265

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

 289

How Spark uses Hadoop?

 286

What is Hadoop serialization?

Capital One,

639

What are the Data extraction tools in Hadoop?

 81

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 ?

 145

What is the difference between Cassandra and Hadoop ?

 80

What is Hadoop HDFS – Hadoop Distributed File System?

 38

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

 64



Related Topics


Un-Answered Questions { Apache Hadoop }

What is Apache Hadoop YARN?

1417

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

961

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

850

What are the core components of Apache Hadoop?

718

What is the difference between Apache Hadoop and RDBMS?

743

How is security achieved in Apache Hadoop?

836

What is Apache Hadoop?

800

What is a “Distributed Cache” in Apache Hadoop?

725

What is the problem with small files in Apache Hadoop?

729

What is Rack Awareness in Apache Hadoop?

750

Explain Erasure Coding in Apache Hadoop?

693

What is Disk Balancer in Apache Hadoop?

802

What is a speculative execution in Apache Hadoop MapReduce?

739

What are the modes in which Apache Hadoop run?

747

What is Safemode in Apache Hadoop?

684