📊 Hadoop
Q. What is the purpose of the Hadoop MapReduce "Combiner Optimization" in advanced MapReduce?
  • (A) Combine intermediate key-value pairs on the mapper side
  • (B) Aggregate values on the reducer side
  • (C) Sort and shuffle data
  • (D) Distribute data to reducers
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✅ Correct Answer: (A) Combine intermediate key-value pairs on the mapper side

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Shiva Ram
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