Q. What is the purpose of a Combiner?

  • (A) Final aggregation
  • (B) Intermediate optimization
  • (C) Data storage
  • (D) Resource allocation
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✅ Correct Answer: (B) Intermediate optimization
Explanation: Combiner reduces data transfer between Map and Reduce.

Published by Mr. Dubey ⭐ 111.54K Points at 19-Apr-2026 08:51 pm in Hadoop

Explanation by: Mr. Dubey
Combiner reduces data transfer between Map and Reduce.

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