Azure AZ-720 case studies
Azure AZ-720 · Put your knowledge to work in context.
Exam AZ-720, Troubleshooting Microsoft Azure Connectivity, was a Microsoft certification exam aimed at support engineers who resolve networking and connectivity problems in Azure. According to Microsoft's exam page, candidates for this exam are support engineers with subject matter expertise in using advanced troubleshooting methods to resolve networking and connectivity issues in Azure, and they troubleshoot hybrid environments including Azure virtual machines, virtual networks, and connectivity between on-premises and Azure services. The Azure AZ-720 case studies are 6 cases and about 2,547 words.
1Recovery Plan Fails After Region Outage
Contoso runs a three-tier app in East US. VMs are backed up with Azure Backup to a Recovery Services vault configured with Geo-Redundant Storage.
467 words, about 2 min2ExpressRoute Circuit Shows Connected but Traffic Fails
Fabrikam has an ExpressRoute circuit with a private peering to a virtual network gateway in West Europe. The circuit status shows 'Enabled' and the peering shows 'Provisioned'.
440 words, about 2 min3App Service Returns 502 Through Private Endpoint
Northwind hosts a Linux App Service plan (P1v3, three instances) with a private endpoint in subnet 10.30.2.0/24 and public access disabled. The app calls an Azure SQL database through its own private endpoint in the same VNet.
422 words, about 2 min4Conditional Access Blocks Service Principal
Tailspin has a multitenant app registration used by a partner. A Conditional Access policy requires multifactor authentication for all users accessing the Azure portal and applies to 'All cloud apps'.
431 words, about 2 min5Hub-Spoke Peering Traffic Dropped by NSG
Adventure Works has a hub VNet 10.40.0.0/16 and two spoke VNets 10.41.0.0/16 and 10.42.0.0/16, both peered to the hub but not to each other. A VM in spoke1 (10.41.1.4) cannot reach a VM in spoke2 (10.42.1.4) on TCP 443.
394 words, about 2 min6VM Loses Connectivity After NIC Change
Litware has a Windows Server VM in subnet 10.50.3.0/24 with a static private IP 10.50.3.10 assigned inside the guest OS. The VM's NIC uses dynamic allocation in Azure.
393 words, about 2 min