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AWS Certified Solutions Architect study material · question 443 of 500

How does Lambda handle two simultaneous invocations of the same function?

  1. The second is rejected unless provisioned concurrency is set
  2. Each runs independently with no shared state, scaling horizontally
  3. They share one execution environment and its memory
  4. The second is queued until the first completes
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Answer: B. Each runs independently with no shared state, scaling horizontally

Every invocation is independent and gets its own execution environment, which is how Lambda scales to match demand.

Source: What is AWS Lambda? (Amazon Web Services) — What is AWS Lambda?

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