Q. What happens if the NameNode crashes in an HDFS cluster?

  • (A) All data is lost
  • (B) DataNodes stop working
  • (C) The cluster becomes inaccessible
  • (D) Data gets replicated automatically
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✅ Correct Answer: (C) The cluster becomes inaccessible
Explanation: If the NameNode crashes, the cluster becomes inaccessible since it stores all the metadata.

Published by Rati Dubey ⭐ 9.05K Points at 18-Jun-2025 08:40 am in Hadoop

Explanation by: Rati Dubey
If the NameNode crashes, the cluster becomes inaccessible since it stores all the metadata.

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