You have a web app named WebApp1 that has the autoscale condition shown in the following exhibit.

Every autoscale condition rule is configured to have a duration of 20 minutes and a cool down time of 10 minutes.
At 06:00, 500 users are connected to WebApp1, WebApp1 is running two instances, and the average CPU utilization is consistently 50 percent.
At 07:00, 720 users are connected to WebApp1 and the average CPU utilization increases to 72 percent.
If 720 users remain connected to WebApp1, how many instances of WebApp1 will be running at 07:35?
Correct Answer: C
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Explanation:
The duration is 20 minutes and the cool-down time is 10 minutes. The autoscale is triggered when the duration has passed. Thus it will trigger at 7:20. It will not trigger again until the cool-down time has lapsed. At 7:30 it will trigger a second time if the CPU usage remains above 60%. However, we have scaled out to double the instances. Thus CPU usage would drop.
Reference:
https://docs.microsoft.com/en-us/azure/virtual-machine-scale-sets/virtual-machine-scale-sets-autoscale-portal