- A
Service endpoint on the subnet plus public DNS, because the storage account will expose a private IP automatically.
Why wrong: Service endpoints extend the subnet's identity to the service, but they do not create a private IP address for the storage account.
- B
Private endpoint with a private DNS zone linked to the virtual network.
A private endpoint places the storage service behind a private IP address in your virtual network, which is exactly what the scenario requires. Linking a private DNS zone ensures the storage account name resolves to that private IP from resources inside the VNet. Together, these settings provide private network access and allow you to disable the public endpoint safely.
- C
Network security group rules only, because they can force traffic to use private addressing.
Why wrong: NSG rules filter traffic, but they do not change name resolution or create a private endpoint for the storage account.
- D
Storage account firewall rules with Allow trusted Microsoft services, because that gives a private address path.
Why wrong: Storage firewall rules control public endpoint access, but they do not provide a private IP address or private DNS-based name resolution.
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 VM in a virtual network must access an Azure Storage account over a private IP address, and the storage account's public endpoint must be disabled. Name resolution from the VM should resolve the storage name to the private IP. Which configuration should you use?
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
Private endpoint with a private DNS zone linked to the virtual network.
Option B is correct because a private endpoint assigns a private IP from the virtual network to the storage account, effectively bringing the service into the VNet. By linking a private DNS zone to the virtual network, the VM's DNS resolution for the storage account name returns the private IP instead of the public endpoint, satisfying both the private connectivity and public endpoint disablement requirements.
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.
- ✗
Service endpoint on the subnet plus public DNS, because the storage account will expose a private IP automatically.
Why it's wrong here
Service endpoints extend the subnet's identity to the service, but they do not create a private IP address for the storage account.
- ✓
Private endpoint with a private DNS zone linked to the virtual network.
Why this is correct
A private endpoint places the storage service behind a private IP address in your virtual network, which is exactly what the scenario requires. Linking a private DNS zone ensures the storage account name resolves to that private IP from resources inside the VNet. Together, these settings provide private network access and allow you to disable the public endpoint safely.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Network security group rules only, because they can force traffic to use private addressing.
Why it's wrong here
NSG rules filter traffic, but they do not change name resolution or create a private endpoint for the storage account.
- ✗
Storage account firewall rules with Allow trusted Microsoft services, because that gives a private address path.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is confusing service endpoints (which only provide source IP preservation and routing via the public endpoint) with private endpoints (which provide a true private IP and can disable the public endpoint), leading candidates to choose option A.
Detailed technical explanation
How to think about this question
A private endpoint uses a network interface (NIC) in the VNet with a private IP from the subnet, and traffic to the storage account is routed via Microsoft's backbone network, never leaving the Azure network. The private DNS zone (privatelink.blob.core.windows.net) must be linked to the VNet and configured with an A record mapping the storage account FQDN to the private IP; without this, the VM would still resolve to the public IP via Azure's default DNS. In real-world scenarios, failing to configure the private DNS zone correctly leads to DNS resolution failures or unintended public endpoint access.
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: Private endpoint with a private DNS zone linked to the virtual network. — Option B is correct because a private endpoint assigns a private IP from the virtual network to the storage account, effectively bringing the service into the VNet. By linking a private DNS zone to the virtual network, the VM's DNS resolution for the storage account name returns the private IP instead of the public endpoint, satisfying both the private connectivity and public endpoint disablement requirements.
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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