📊 Hadoop
Q. In advanced MapReduce, what is the significance of the Hadoop MapReduce "Map-side Join"?
  • (A) Join data on the mapper side
  • (B) Join data on the reducer side
  • (C) Sort keys on the mapper side
  • (D) Sort keys on the reducer side
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✅ Correct Answer: (A) Join data on the mapper side

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