Alibaba Cloud Certified Professional – Cloud Computing — Question 2

You have set an alert policy for the disk usage of an ECS instance by using Alibaba Cloud CloudMonitor. Each measurement cycle lasts for 5 minutes, during which the average disk usage is measured. If the average disk usage exceeds 80% for five consecutive measurement cycles, an alert will be reported. After your average disk usage exceeds 80%, how long will it take to receive an alert?

Answer options

Correct answer: C

Explanation

The correct answer is C, as it takes 5 measurement cycles of 5 minutes each to trigger an alert after the disk usage exceeds 80%, resulting in a total of 25 minutes. However, since the alert is generated after the fifth cycle, the total wait time from the first measurement exceeds 40 minutes. Options A and D are incorrect because they do not account for the necessary consecutive cycles, and B is also incorrect as it does not reflect the total time needed.