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AWS Certified Solutions Architect study material · question 452 of 500

Why does AWS recommend General Purpose over Max I/O performance mode for EFS?

  1. Max I/O carries higher latency on every operation
  2. Max I/O supports fewer concurrent clients
  3. Max I/O is available only for One Zone file systems
  4. Max I/O cannot use Elastic throughput
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Answer: A. Max I/O carries higher latency on every operation

Max I/O trades per-operation latency for scale, so AWS recommends General Purpose mode whenever speed matters.

Source: Amazon EFS performance specifications (Amazon Web Services) — Important

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