Answer / Abhilasha Gautam

Hadoop Archive (HAR) is a ZIP-like archiving format used in Hadoop. It's primarily used for distributing applications, libraries, and data across a Hadoop cluster. HAR files can contain multiple JAR files, configuration files, scripts, and other resources required by the application. This format helps to manage dependencies and ease deployment of applications on the Hadoop ecosystem.

What are the actions followed by hadoop?

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What is KeyValueTextInputFormat in Hadoop?

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Explain about Hadoop file system and processing framework?

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Is it possible to provide multiple input to Hadoop? If yes then how?

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What is CAP Theorem? What aspects does Hadoop support from this theorem?

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Why does one remove or add nodes in a Hadoop cluster frequently?

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What is Balancer in Hadoop?

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How to debug Hadoop code?

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Explain what is speculative execution?

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Explain Hadoop Archives?

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What sorts of actions does the job tracker process perform?

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Are job tracker and task trackers present in separate machines?

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