Q. What does speculative execution in Hadoop do?

  • (A) Executes all jobs twice
  • (B) Executes backup tasks for slow tasks
  • (C) Increases disk usage
  • (D) Compresses large files
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✅ Correct Answer: (B) Executes backup tasks for slow tasks
Explanation: Speculative execution runs duplicate tasks to handle straggling tasks and improve performance.

Published by Mr. Dubey ⭐ 110.67K Points at 13-Jun-2025 07:25 am in Hadoop

Explanation by: Mr. Dubey
Speculative execution runs duplicate tasks to handle straggling tasks and improve performance.

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