- A
Create a new storage account in VNet B.
Why wrong: Storage accounts are not deployed into VNets, and creating another account does not fix private DNS resolution for the existing endpoint.
- B
Link the private DNS zone for the storage service to VNet B.
The private endpoint depends on DNS so clients resolve the service name to the private IP. Linking the private DNS zone to VNet B enables that name resolution from the peered network.
- C
Add an inbound NSG rule allowing DNS traffic from VNet B.
Why wrong: NSGs do not determine DNS record values. They may allow UDP 53 traffic, but they cannot change what address is returned.
- D
Replace the private endpoint with a service endpoint.
Why wrong: A service endpoint would not give the storage account a private IP in the VNet and would not solve private name resolution for the existing design.
AZ-104 Implement and Manage Virtual Networking Practice Question
This AZ-104 practice question tests your understanding of implement and manage virtual networking. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A storage account has a private endpoint in VNet A. A VM in peered VNet B can reach the storage account by private IP, but when the VM resolves the storage account name it still gets the public IP address. What should be configured so the name resolves to the private IP from VNet B?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Link the private DNS zone for the storage service to VNet B.
When a private endpoint is created in VNet A, a private DNS zone (e.g., `privatelink.blob.core.windows.net`) is automatically linked to VNet A, enabling name resolution to the private IP within that VNet. However, VNet B is peered but not linked to that private DNS zone, so VMs in VNet B continue to resolve the storage account name via public DNS, returning the public IP. By linking the private DNS zone to VNet B, the VM will resolve the storage account name to the private IP address of the private endpoint.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Create a new storage account in VNet B.
Why it's wrong here
Storage accounts are not deployed into VNets, and creating another account does not fix private DNS resolution for the existing endpoint.
- ✓
Link the private DNS zone for the storage service to VNet B.
Why this is correct
The private endpoint depends on DNS so clients resolve the service name to the private IP. Linking the private DNS zone to VNet B enables that name resolution from the peered network.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Add an inbound NSG rule allowing DNS traffic from VNet B.
- ✗
Replace the private endpoint with a service endpoint.
Why it's wrong here
A service endpoint would not give the storage account a private IP in the VNet and would not solve private name resolution for the existing design.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates assume peering automatically extends DNS resolution for private endpoints, but peering only provides network connectivity—DNS zone linking is a separate, required configuration step.
Detailed technical explanation
How to think about this question
Azure Private Endpoint uses a network interface with a private IP from the VNet, and Azure automatically creates a private DNS zone (e.g., `privatelink.blob.core.windows.net`) with an A record mapping the storage account name to that private IP. This DNS zone must be linked to any VNet (including peered VNets) that needs to resolve the name privately; otherwise, the VM falls back to public DNS. In a hub-and-spoke topology, you would typically link the private DNS zone to the hub VNet and configure the spoke VNets to use the hub as a custom DNS server, or link the zone directly to each spoke.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
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FAQ
Questions learners often ask
What does this AZ-104 question test?
Implement and Manage Virtual Networking — This question tests Implement and Manage Virtual Networking — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Link the private DNS zone for the storage service to VNet B. — When a private endpoint is created in VNet A, a private DNS zone (e.g., `privatelink.blob.core.windows.net`) is automatically linked to VNet A, enabling name resolution to the private IP within that VNet. However, VNet B is peered but not linked to that private DNS zone, so VMs in VNet B continue to resolve the storage account name via public DNS, returning the public IP. By linking the private DNS zone to VNet B, the VM will resolve the storage account name to the private IP address of the private endpoint.
What should I do if I get this AZ-104 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jun 11, 2026
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