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Why is cluster administration important for Hadoop reliability?

easy📝 Conceptual Q11 of 15
Hadoop - Cluster Administration
Why is cluster administration important for Hadoop reliability?
AIt increases the speed of a single computer.
BIt writes the data processing code.
CIt replaces the need for data backups.
DIt monitors and manages nodes to prevent failures.
Step-by-Step Solution
Solution:

  1. Step 1: Understand cluster administration role

    Cluster administration involves monitoring and managing multiple computers (nodes) working together.

  2. Step 2: Connect role to reliability

    By managing nodes, it prevents failures and keeps the system reliable.

  3. Final Answer:

    It monitors and manages nodes to prevent failures. -> Option D

  4. Quick Check:

    Cluster admin = monitoring + managing nodes [OK]
Quick Trick: Cluster admin = watch nodes + fix issues fast [OK]
Common Mistakes:
  • Thinking cluster admin writes code
  • Believing it speeds up one computer only
  • Assuming it removes need for backups

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