Q. What does the shuffle phase do in MapReduce?

  • (A) Stores data
  • (B) Transfers data between map and reduce
  • (C) Executes tasks
  • (D) Manages nodes
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✅ Correct Answer: (B) Transfers data between map and reduce
Explanation: Shuffle transfers intermediate data from mappers to reducers.

Published by Mr. Dubey ⭐ 111.54K Points at 19-Apr-2026 08:52 pm in Hadoop

Explanation by: Mr. Dubey
Shuffle transfers intermediate data from mappers to reducers.

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