Q. What is the primary purpose of the Secondary NameNode in Hadoop?

  • (A) To act as a backup NameNode
  • (B) To process MapReduce jobs
  • (C) To merge edit logs with fsimage
  • (D) To store data blocks
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✅ Correct Answer: (C) To merge edit logs with fsimage
Explanation: The Secondary NameNode periodically merges the edit logs with the fsimage to prevent them from growing too large.

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

Explanation by: Mr. Dubey
The Secondary NameNode periodically merges the edit logs with the fsimage to prevent them from growing too large.

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