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AWS Certified Solutions Architect study material · question 411 of 500

Can one Lambda execution environment handle two requests at the same time?

  1. Yes, when provisioned concurrency is enabled
  2. No, it is occupied for the whole of a request
  3. Yes, up to the function's memory limit
  4. Yes, if the runtime supports threading
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Answer: B. No, it is occupied for the whole of a request

An execution environment cannot process another request until the current one finishes, which is why concurrency means more environments.

Source: Understanding Lambda function scaling (Amazon Web Services) — Understanding and visualizing concurrency

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