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AWS Certified Solutions Architect study material · question 221 of 500

Which signal warns that a Spot Instance faces a raised risk of interruption?

  1. A CloudWatch billing alarm
  2. A Trusted Advisor service limit check
  3. An Auto Scaling lifecycle hook timeout
  4. An EC2 instance rebalance recommendation
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Answer: D. An EC2 instance rebalance recommendation

EC2 emits a rebalance recommendation ahead of elevated interruption risk, giving the application a chance to move work elsewhere.

Source: Spot Instances (Amazon Web Services) — Concepts

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