Q. What is speculative execution in Hadoop?

  • (A) Executing jobs only at night
  • (B) Running backup copies of slow tasks
  • (C) Task caching
  • (D) Redundant data processing
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✅ Correct Answer: (B) Running backup copies of slow tasks
Explanation: Speculative execution runs backup instances of slow tasks to reduce overall job execution time.

Published by Mr. Dubey ⭐ 111.54K Points at 13-Jun-2025 07:31 am in Hadoop

Explanation by: Mr. Dubey
Speculative execution runs backup instances of slow tasks to reduce overall job execution time.

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