App1 is an App Service app running on two instances and has an autoscale rule with the Instance limits Maximum set to 5. If App1 consumes 80% of available memory over a 30-minute period, what is the maximum number of instances App1 can reach during that period?

The autoscale rule's "Maximum" instance limit dictates the absolute upper bound for scaling. Even if the current instance count is 2 and the scaling trigger (80% memory consumption) is met, the app will scale out only up to the predefined maximum. Therefore, App1 can reach a maximum of 5 instances. The other options are incorrect because they are less than the specified maximum limit of 5. The autoscale rule will not exceed the maximum limit, regardless of the scaling trigger or the current instance count.