A

Admin • 832.27K Points
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Q. What is the purpose of the Combiner in MapReduce?

  • (A) Preprocess input data
  • (B) Reduce output size of Map phase
  • (C) Split files
  • (D) Combine reducers
  • Correct Answer - Option(B)
  • Views: 10
  • Filed under category Hadoop
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Explanation by: Admin

Combiner acts as a mini-reducer to reduce the volume of data transferred between Map and Reduce.

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