問題文
The success-rate panel for a generation endpoint sits at 99.9 percent all week, yet support tickets about unusable answers keep arriving. The endpoint returns a status code for every request. Which flaw in the panel explains the gap?
選択肢
- It reads the status code from the load balancer rather than from the model server, so an error raised inside the server is recorded as a success on the panel itself.
- It excludes requests that the client canceled.
- It counts a request as successful whenever a response was returned, so an empty, truncated, or refused answer is recorded the same way a useful one is.
- It averages the success rate over the whole week, and shortening the window to one hour would surface the unusable answers; each of them would then fall into a window where the failing requests make up a much larger share of the total count.