Answer / Mudit Kumar

RDBMS (Relational Database Management System) is a type of database management system that stores data in tables with rows and columns, follows ACID (Atomicity, Consistency, Isolation, Durability) properties, and is primarily used for structured data. On the other hand, Hadoop is an open-source framework that enables distributed processing of large data sets across clusters of computers using simple programming models. It's designed to scale up easily, providing high fault tolerance, and handling both structured and unstructured data.

Is a job split into maps?

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On what basis data will be stored on a rack?

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Define a job tracker?

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Explain use cases where SequenceFile class can be a good fit?

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Have you ever used Counters in Hadoop. Give us an example scenario?

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what is the typical block size of an HDFS block?

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Define streaming?

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Explain why do we need hadoop?

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Which are the two types of 'writes' in HDFS?

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Who invented hadoop?

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What are the port numbers of namenode, job tracker and task tracker?

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How you can contact your client everyday ?

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