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Assertion (A): A function can be throttled even though every individual invocation is fast.
Reason (R): Throttling responds to the number of simultaneous invocations, not to their duration.

  • A.Both A and R are true, but R is not the correct explanation of A
  • B.A is true but R is false
  • C.A is false but R is true
  • D.Both A and R are true, and R is the correct explanation of A

Answer: D

Correct answer: Both A and R are true, and R is the correct explanation of A

Both are true and the reason gives the mechanism. Throttling triggers when the number of simultaneous executions reaches the limit, and a burst of arrivals can reach that limit even if each invocation finishes in milliseconds. The remedies are to raise the concurrency limit, to smooth the arrivals through a queue, or to reduce the duration - since concurrency is rate multiplied by duration.

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