- A
Enable a service endpoint on VNet B for Microsoft.Storage.
Why wrong: A service endpoint does not create the private DNS behavior needed for the storage account name to resolve to the private IP.
- B
Link the private DNS zone for the storage account to VNet B.
The name resolution problem indicates that VNet B does not know to resolve the storage FQDN to the private endpoint address. Linking the correct private DNS zone to VNet B lets machines in that network resolve the name to the private IP instead of the public endpoint. This is a common requirement when private endpoints are accessed from peered networks or additional VNets.
- C
Assign the VM in VNet B a managed identity.
Why wrong: Managed identity affects authentication, not DNS resolution or network path selection.
- D
Create a route table that points storage traffic to the private endpoint subnet.
Why wrong: Private endpoints are resolved through DNS, not by manually routing traffic to the endpoint subnet.
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 is accessed from a VM in VNet A through a private endpoint. A VM in peered VNet B can connect to the storage account by IP, but when it uses the storage account name, it resolves to the public endpoint. What should the administrator configure?
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 account to VNet B.
The VM in VNet B can reach the storage account by IP because the private endpoint is accessible over the VNet peering, but DNS resolution 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 account name to the private endpoint IP, ensuring connectivity over the Microsoft backbone instead of the public internet.
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.
- ✗
Enable a service endpoint on VNet B for Microsoft.Storage.
Why it's wrong here
A service endpoint does not create the private DNS behavior needed for the storage account name to resolve to the private IP.
- ✓
Link the private DNS zone for the storage account to VNet B.
Why this is correct
The name resolution problem indicates that VNet B does not know to resolve the storage FQDN to the private endpoint address. Linking the correct private DNS zone to VNet B lets machines in that network resolve the name to the private IP instead of the public endpoint. This is a common requirement when private endpoints are accessed from peered networks or additional VNets.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Assign the VM in VNet B a managed identity.
Why it's wrong here
Managed identity affects authentication, not DNS resolution or network path selection.
- ✗
Create a route table that points storage traffic to the private endpoint subnet.
Why it's wrong here
Private endpoints are resolved through DNS, not by manually routing traffic to the endpoint subnet.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates assume VNet peering automatically provides DNS resolution for private endpoints, but the private DNS zone must be explicitly linked to each peered VNet for name resolution to work.
Detailed technical explanation
How to think about this question
Private endpoints use a private DNS zone (e.g., privatelink.blob.core.windows.net) with an A record mapping the storage account FQDN to the private IP. When a VM in a peered VNet queries DNS, the resolution succeeds only if the private DNS zone is linked to that VNet; otherwise, the public CNAME chain resolves to the public IP. This is governed by Azure DNS resolution logic and the 'Auto-Registration' feature, which is not enabled by default for peered VNets.
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 account to VNet B. — The VM in VNet B can reach the storage account by IP because the private endpoint is accessible over the VNet peering, but DNS resolution 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 account name to the private endpoint IP, ensuring connectivity over the Microsoft backbone instead of the public internet.
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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