A

Admin • 833K Points
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Q. What is the main responsibility of a DataNode?

  • (A) Store metadata
  • (B) Execute MapReduce jobs
  • (C) Store and retrieve actual data blocks
  • (D) Monitor YARN jobs
  • Correct Answer - Option(C)
  • Views: 17
  • Filed under category Hadoop
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Explanation by: Admin

DataNodes handle the actual storage and retrieval of data blocks in HDFS.

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