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AZ-104 · Question #371

Drag and Drop Question You are developing an Azure web app named WebApp1. WebApp1 uses an Azure App Service plan named Plan1 that uses the B1 pricing tier. You need to configure WebApp1 to add…

The correct answer is From the Scale out (App Service Plan) settings blade, change the pricing tier.; From the Scale out (App Service Plan) settings blade, enable autoscale.; From the Scale mode to Scale based on a metric, add a rule, and set the instance limits. To enable CPU-based autoscaling on an Azure App Service, you must first upgrade the App Service Plan from B1 to a tier that supports autoscale (Standard or higher) via the Scale out blade, then enable the Custom Autoscale feature, and finally set the Scale mode to 'Scale based…

Submitted by cyberguy42· Mar 4, 2026Implement and Manage Azure Compute Solutions - Configure scaling for Azure App Service

Question

Drag and Drop Question You are developing an Azure web app named WebApp1. WebApp1 uses an Azure App Service plan named Plan1 that uses the B1 pricing tier. You need to configure WebApp1 to add additional instances of the app when CPU usage exceeds 70 percent for 10 minutes. Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order. Answer:

Exhibit

AZ-104 question #371 exhibit

Answer Area

Drag items

From the Deployment Resources settings blade of WebApp1, add a slot.From the Scale out (App Service Plan) settings blade, enable autoscale.From the Scale mode to Scale based on a metric, add a rule, and set the instance limits.Set the Scale mode to Scale to a specific instance count, and set the instance count.From the Tags settings blade of WebApp1, add a tag named $Scale that has a value of AutoFrom the Scale out (App Service Plan) settings blade, change the pricing tier.

Correct arrangement

  • From the Scale out (App Service Plan) settings blade, change the pricing tier.
  • From the Scale out (App Service Plan) settings blade, enable autoscale.
  • From the Scale mode to Scale based on a metric, add a rule, and set the instance limits.

Explanation

To enable CPU-based autoscaling on an Azure App Service, you must first upgrade the App Service Plan from B1 to a tier that supports autoscale (Standard or higher) via the Scale out blade, then enable the Custom Autoscale feature, and finally set the Scale mode to 'Scale based on a metric,' add a CPU rule with the 70% threshold over 10 minutes, and configure the instance limits. The B1 (Basic) tier does not support autoscale natively, so a plan change is the prerequisite step. The three correct actions in sequence are: (1) From the Scale out (App Service Plan) settings blade, change the pricing tier to one that supports autoscale; (2) From the Scale out (App Service Plan) settings blade, enable autoscale; (3) Set the Scale mode to Scale based on a metric, add a rule, and set the instance limits.

Topics

#Azure App Service#Autoscale#App Service Plan#Performance Management

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