Answer / Sagar Kumar Jaiswal

In Apache Hadoop's HDFS, the replication factor refers to the number of copies of a data block that are stored across multiple DataNodes in the cluster. This is done for fault tolerance and data availability.

Explain the use of tasktracker in the hadoop cluster?

1 Answers  

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did you maintain the hadoop cluster in-house or used hadoop in the cloud?

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Define streaming?

1 Answers  

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Is secondary namenode a substitute to the namenode?

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Name some companies that use Hadoop?

1 Answers   Airtel,

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On what basis Namenode will decide which datanode to write on?

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Explain what is sqoop in Hadoop ?

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What are the functions of NameNode?

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How to enable trash/recycle bin in hadoop?

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Explain the core components of hadoop?

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What is the process to change the files at arbitrary locations in HDFS?

1 Answers  

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What do you mean by taskinstance?

1 Answers  

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