AZ-104 Certification Practice Question #178

Question

You have the App Service plan shown in the following exhibit.

The scale-in settings for the App Service plan are configured as shown in the following exhibit.

The scale out rule is configured with the same duration and cool down tile as the scale in rule.
Use the drop-down menus to select the answer choice that completes each statement based on the information presented in the graphic.
NOTE: Each correct selection is worth one point.
Hot Area:

Accepted Answer

1. **Statement 1 (2 instances):** The App Service plan starts with the default of 1 instance. A CPU usage of 70% for one hour does not trigger scale-out because it is below the 85% scale-out threshold. However, when CPU usage reaches 90% for 5 minutes, it meets the scale-out duration requirement (>85% for 5 minutes), triggering a scale-out event that adds 1 instance, making the total count `1 + 1 = 2`.
2. **Statement 2 (4 instances):** Running at 90% CPU for one hour continually scales the plan up until it hits the Maximum Limit of `5` instances. Then, the CPU usage drops below 25% (satisfying the scale-in threshold of <30%). At the 5-minute mark of this low usage, a scale-in is triggered, which decreases the count by 1 (down to `4` instances). This event starts a 5-minute cooldown timer. Because only 4 minutes remain out of the total 9 minutes of low usage (9 - 5 = 4), the cooldown prevents any further scale-in actions from executing. Thus, the count remains at `4`.

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