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Microsoft Certified: Azure Network Engineer Associate · Microsoft
Interactive Drag & Drop Matching
Drag each configuration to its target, or tap an option then tap a target slot.
Hotspot Solution:
The correct set is No / No / Yes — not N/N/N. 1) VM2 resolves vm1.contoso.com to 10.1.10.10 → No. There’s a manual A record for VM1 → 10.1.10.9 in the private zone. With auto-registration also creating 10.1.10.10, the record set contains two A records. Resolution is not guaranteed to return 10.1.10.10 only. 2) Deleting VM1 deletes all VM1 records → No. Deleting the VM removes the auto-registered entry, but the manually created record remains. 3) Changing VM3’s IP auto-updates its DNS record → Yes. With auto-registration enabled on the VNet link, Azure Private DNS updates A/PTR records when a VM’s NIC private IP changes (whether the NIC allocation is dynamic or static). This doesn’t depend on setting a static IP inside the guest OS (which is unsupported in Azure). So when you change VM3’s NIC private IP, its DNS record is updated automatically.
Written by other learners. Comments can disagree with the marked answer — check the official documentation when in doubt.
NNY Manual record overrides auto-registration >>>N Auto-registered records only >>> N New record is created automatically >>> Y
NNY - auto registration enabled for VM3 / VNET2
The correct set is No / No / Yes — not N/N/N. 1) VM2 resolves vm1.contoso.com to 10.1.10.10 → No. There’s a manual A record for VM1 → 10.1.10.9 in the private zone. With auto-registration also creating 10.1.10.10, the record set contains two A records. Resolution is not guaranteed to return 10.1.10.10 only. 2) Deleting VM1 deletes all VM1 records → No. Deleting the VM removes the auto-registered entry, but the manually created record remains. 3) Changing VM3’s IP auto-updates its DNS record → Yes. With auto-registration enabled on the VNet link, Azure Private DNS updates A/PTR records when a VM’s NIC private IP changes (whether the NIC allocation is dynamic or static). This doesn’t depend on setting a static IP inside the guest OS (which is unsupported in Azure). So when you change VM3’s NIC private IP, its DNS record is updated automatically.