A

Admin • 802.91K Points
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Q. What does the 'combiner' function in MapReduce help with?

  • (A) Combines reducers
  • (B) Combines inputs from HDFS
  • (C) Optimizes performance by reducing data transfer
  • (D) Manages job failures
  • Correct Answer - Option(C)
  • Views: 1
  • Filed under category Hadoop
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Explanation by: Admin
A combiner is an optional MapReduce component that helps optimize performance by reducing the volume of data transferred to the reducer.

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