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Why is it important to test disaster recovery plans regularly in Hadoop clusters?

hard📝 Conceptual Q10 of 15
Hadoop - Cluster Administration
Why is it important to test disaster recovery plans regularly in Hadoop clusters?
ATo ensure backups can be restored successfully when needed
BTo improve cluster processing speed
CTo reduce storage space used by backups
DTo update Hadoop software automatically
Step-by-Step Solution
Solution:

  1. Step 1: Understand disaster recovery testing purpose

    Testing ensures backups and recovery processes work correctly.

  2. Step 2: Eliminate unrelated reasons

    Improving speed, reducing storage, or updating software are unrelated to testing recovery plans.

  3. Final Answer:

    To ensure backups can be restored successfully when needed -> Option A

  4. Quick Check:

    Disaster recovery testing = verify restore success [OK]
Quick Trick: Test recovery to confirm backups restore properly [OK]
Common Mistakes:
  • Thinking testing improves speed
  • Confusing testing with storage cleanup
  • Assuming testing updates software

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