- A
Add a service endpoint for Microsoft.Storage to VNet B
Why wrong: A service endpoint still uses the public endpoint and does not fix private-name resolution.
- B
Link the private DNS zone used by the private endpoint to VNet B
Private endpoint connectivity depends on DNS resolution returning the private IP address. In a peered virtual network, the DNS zone for the private endpoint must be linked so clients in VNet B resolve the storage name to the private address instead of the public one. Once that DNS path is corrected, traffic follows the private endpoint.
- C
Disable the storage account firewall completely
Why wrong: Disabling the firewall would weaken security and still would not make VNet B resolve the private IP.
- D
Move the storage account into VNet B
Why wrong: Storage accounts are not deployed inside a virtual network, so this is not a valid remediation.
AZ-104 Implement and Manage Virtual Networking Practice Question
This AZ-104 practice question tests your understanding of implement and manage virtual networking. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 VM in VNet B can reach a blob storage account through a private endpoint that was created in peered VNet A. The storage FQDN still resolves to the public IP when queried from VNet B, so the VM does not use the private path. What should the administrator change?
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 used by the private endpoint to VNet B
The private endpoint in VNet A creates a private IP for the storage account, but DNS resolution in VNet B still returns the public IP because the private DNS zone (privatelink.blob.core.windows.net) is not linked to VNet B. By linking the private DNS zone to VNet B, the VM will resolve the storage FQDN to the private IP, ensuring traffic uses the private endpoint path through the VNet peering.
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.
- ✗
Add a service endpoint for Microsoft.Storage to VNet B
Why it's wrong here
A service endpoint still uses the public endpoint and does not fix private-name resolution.
- ✓
Link the private DNS zone used by the private endpoint to VNet B
Why this is correct
Private endpoint connectivity depends on DNS resolution returning the private IP address. In a peered virtual network, the DNS zone for the private endpoint must be linked so clients in VNet B resolve the storage name to the private address instead of the public one. Once that DNS path is corrected, traffic follows the private endpoint.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Disable the storage account firewall completely
Why it's wrong here
Disabling the firewall would weaken security and still would not make VNet B resolve the private IP.
- ✗
Move the storage account into VNet B
Why it's wrong here
Storage accounts are not deployed inside a virtual network, so this is not a valid remediation.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates assume VNet peering automatically extends DNS resolution for private endpoints, but in reality, private DNS zones must be explicitly linked to each peered VNet to enable private IP resolution.
Detailed technical explanation
How to think about this question
Private endpoints use Azure Private DNS zones (e.g., privatelink.blob.core.windows.net) to map the storage FQDN to a private IP. When a VM in a peered VNet queries the FQDN, DNS resolution follows the zone's scope; without linking the zone to the peered VNet, the VM falls back to public DNS, returning the public IP. This behavior is governed by Azure DNS resolution logic, where a private DNS zone linked to a VNet overrides public DNS for that VNet only.
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
Got this wrong? Here's your next step.
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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 used by the private endpoint to VNet B — The private endpoint in VNet A creates a private IP for the storage account, but DNS resolution in VNet B still returns the public IP because the private DNS zone (privatelink.blob.core.windows.net) is not linked to VNet B. By linking the private DNS zone to VNet B, the VM will resolve the storage FQDN to the private IP, ensuring traffic uses the private endpoint path through the VNet peering.
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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