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Home » Quiz » Hadoop Quiz

Which component of HDFS is responsible for data replication and storage?

Difficulty level
  • DataNode
  • JobTracker
  • NameNode
  • ResourceManager
The component of HDFS responsible for data replication and storage is DataNode. DataNodes are responsible for storing and managing the actual data blocks and replicating them to ensure fault tolerance.
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Hadoop Quiz
Quiz
For ensuring data durability in Hadoop, ____ is a critical factor in capacity planning, especially for backup and recovery purposes.
The ____ feature in HDFS allows administrators to specify policies for moving and storing data blocks.

Related Quiz

  • In the Hadoop Streaming API, custom ____ are often used to optimize the mapping and reducing processes.
  • In monitoring Hadoop clusters, ____ plays a critical role in ensuring data replication and consistency.
  • What role does the configuration of Hadoop's I/O settings play in cluster performance optimization?
  • Apache Pig's ____ mechanism allows it to efficiently process large volumes of data.
  • For a Hadoop cluster facing performance issues with specific types of jobs, what targeted tuning technique would be effective?

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