Topic 1 Question 143
You need to create a Cloud Monitoring SLO for a service that will be published soon. You want to verify that requests to the service will be addressed in fewer than 300 ms at least 90% of the time per calendar month. You need to identify the metric and evaluation method to use. What should you do?
Select a latency metric for a request-based method of evaluation.
Select a latency metric for a window-based method of evaluation.
Select an availability metric for a request-based method of evaluation.
Select an availability metric for a window-based method of evaluation.
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Answer B seems to be correct for latency and windows-based. "service will be addressed in fewer than 300 ms at least 90% of the time per calendar month. "
👍 4activist2023/10/21- 正解だと思う選択肢: A
I think A is correct answer. Window-based metrics evaluate the percentage of time the condition is met. https://cloud.google.com/stackdriver/docs/solutions/slo-monitoring#slo-types
👍 3YushiSato2023/10/31 - 正解だと思う選択肢: A
it asks to be fewer than 300ms hence it excludes C and D which are availability metrics. Then it cares about the percentage of requests(90%) but never mentioned windows requirements hence A. Actually mentioning calendar in the question is a trick, it misled you to think about a time range, but both request-metrics and windows-metrics would require a setting of compliance periods, this could be either calendar or rolling-windows https://cloud.google.com/stackdriver/docs/solutions/slo-monitoring#compliance-period
👍 3lelele20232023/11/01
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