hard20 pts · first answer countsperformance-testingk6

Virtual users or arrival rate

In a k6 test with 100 looping virtual users, response times jump from 200 ms to 2 s, yet requests per second fall and the error rate looks fine. Why might this test understate real-world impact?

A.k6 cannot measure response times above 1 secondB.Virtual users always send more traffic when the server slows downC.Error rate is the only metric that mattersD.In a closed model, slow responses make each user send fewer requests, so load drops; real users keep arriving, so an arrival-rate (open) model shows the true queueing

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