Q. What is the role of Reducer?

  • (A) Split data
  • (B) Aggregate intermediate results
  • (C) Store data
  • (D) Allocate resources
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✅ Correct Answer: (B) Aggregate intermediate results
Explanation: Reducer aggregates intermediate key-value pairs.

Published by Mr. Dubey ⭐ 111.54K Points at 19-Apr-2026 08:56 pm in Hadoop

Explanation by: Mr. Dubey
Reducer aggregates intermediate key-value pairs.

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