You plan to deploy several Azure virtual machines that will run Windows Server 2019 in a virtual machine scale set by using an Azure Resource Manager template. You need to ensure that NGINX is available on all the virtual machines after they are deployed. What should you use? 

Answer options:

A. Deployment Center in Azure App Service
B. A Desired State Configuration (DSC) extension
C. the New-AzConfigurationAssignment cmdlet
D. a Microsoft Intune device configuration profile

B

Azure virtual machine extensions are small packages that run post-deployment configuration and automation on Azure virtual machines. In the following example, the Azure CLI is used to deploy a custom script extension to an existing virtual machine, which installs a Nginx webserver. az vm extension set \ --resource-group myResourceGroup \ --vm-name myVM --name customScript \ --publisher Microsoft.Azure.Extensions \ --settings `{"commandToExecute": "apt-get install -y nginx"} Note: There are several versions of this question in the exam. The question has two correct answers: 1. a Desired State Configuration (DSC) extension 2. Azure Custom Script Extension The question can have other incorrect answer options, including the following: ✑ the Publish-AzVMDscConfiguration cmdlet ✑ Azure Application Insights Reference: https://docs.microsoft.com/en-us/azure/architecture/framework/devops/automation-configuration