Q. What is the output of Mapper?

  • (A) Final result
  • (B) Key-value pairs
  • (C) Sorted data
  • (D) Database records
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✅ Correct Answer: (B) Key-value pairs
Explanation: Mapper outputs intermediate key-value pairs.

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

Explanation by: Mr. Dubey
Mapper outputs intermediate key-value pairs.

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