You will deploy multiple Windows Server 2019 virtual machines in a VM scale set by using an ARM template. How can you ensure NGINX is available on every VM after deployment?

The Azure Custom Script Extension is the correct choice because it allows you to download and execute scripts on Azure VMs, making it ideal for post-deployment configuration tasks like installing NGINX. This extension can be integrated directly into an ARM template, ensuring NGINX is installed on every VM in the scale set as part of the deployment process. The Publish-AzVMDscConfiguration cmdlet is used for Desired State Configuration (DSC), which is a powerful configuration management tool but is more complex than needed for a simple NGINX installation and not directly integrated into an ARM template for initial deployment in this manner. Azure Application Insights is an application performance management service and is unrelated to VM configuration. A Microsoft Endpoint Manager device configuration profile is used for managing devices within an organization's Intune environment, not for configuring Azure VMs during deployment.