Microsoft Azure Security Engineer Associate AZ-500 Practice Question
You deploy an internal load balancer App Service Environment v3 (ILB ASE) in a subnet named ase-subnet. An NSG is applied to deny all inbound traffic except TCP 443 from the company's on-premises public IPs. Afterward, ASE scale-out operations fail. To restore platform management without broadly opening the subnet, which service tag must the NSG allow?
Allow inbound and outbound traffic that matches the AzureFrontDoor.Backend service tag
Allow inbound and outbound traffic that matches the AppServiceManagement service tag
Allow inbound and outbound traffic that matches the Storage service tag
Allow inbound and outbound traffic that matches the AzureCloud service tag
Platform management operations for an App Service Environment-such as scale-out, patching, and health monitoring-are initiated by Azure over control-plane IP ranges published under the AppServiceManagement service tag. If this traffic is blocked, the resource provider cannot manage the ASE, which causes scale-out failures. Allowing the AppServiceManagement tag (inbound and outbound) restores required connectivity without permitting unnecessary traffic. AzureCloud is too permissive, AzureFrontDoor.Backend is for data-plane traffic, and Storage relates only to Azure Storage.
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Microsoft Azure Security Engineer Associate AZ-500
Secure networking
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