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Why is making an application stateless important for scaling on AWS?

  1. A Any instance can serve any request, so instances become disposable
  2. B It reduces storage costs
  3. C It improves encryption
  4. D It is required by Auto Scaling
Answer

Any instance can serve any request, so instances become disposable

Sessions move to ElastiCache or DynamoDB and uploads to S3, so terminating an instance loses nothing.

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