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What is the key benefit of using snapshots in Elasticsearch?

easy🧠 Conceptual Q1 of Q15
Elasticsearch - Cluster Management
What is the key benefit of using snapshots in Elasticsearch?
ATo encrypt data at rest
BTo improve search query speed
CTo automatically scale cluster nodes
DTo back up and restore cluster data efficiently
Step-by-Step Solution
Solution:

  1. Step 1: Understand snapshot purpose

    Snapshots are used to create backups of indices and cluster state.

  2. Step 2: Identify benefits

    They allow restoring data after failures or migrating data.

  3. Final Answer:

    To back up and restore cluster data efficiently -> Option D

  4. Quick Check:

    Snapshots are backup tools, not performance or scaling features. [OK]
Quick Trick: Snapshots = backup and restore feature [OK]
Common Mistakes:
MISTAKES
  • Confusing snapshots with performance tuning
  • Thinking snapshots scale the cluster
  • Assuming snapshots encrypt data automatically

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