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 VNet A can reach a storage account through a private endpoint, but when the VM resolves the storage account name it still gets the public IP address. What should you configure so name resolution returns the private endpoint address?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The private DNS zone linked to the VNet
When a private endpoint is created for a storage account, the DNS configuration must be updated so that the storage account's fully qualified domain name resolves to the private endpoint's private IP address instead of the public IP. Linking a private DNS zone (privatelink.blob.core.windows.net) to the virtual network and configuring a virtual network link ensures that the VM's DNS queries for the storage account are answered with the private endpoint IP. Without this, the VM continues to use the public IP from public DNS.
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.
✗
A user-defined route to the storage private endpoint
Why it's wrong here
Routing does not change DNS answers, so it will not fix the name resolution problem.
✓
The private DNS zone linked to the VNet
Why this is correct
Linking the private DNS zone makes the storage name resolve to the private endpoint address.
Related concept
Read the scenario before looking for a memorised answer.
✗
A resource lock on the storage account
Why it's wrong here
A lock protects against changes, but it does not affect name resolution or connectivity.
✗
A managed identity for the VM
Why it's wrong here
Managed identity handles authentication to services, not DNS lookup behavior.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse network-level routing (UDRs) with DNS resolution, assuming that directing traffic to the private endpoint IP via a route will fix name resolution, when in fact DNS must be explicitly configured to return the private IP.
Detailed technical explanation
How to think about this question
Private endpoints rely on Azure Private DNS zones to override public DNS resolution for Azure PaaS services. The private DNS zone must be linked to the virtual network with auto-registration enabled (though not required for the endpoint itself) and the VM's DNS suffix search list must include the privatelink subdomain. In scenarios where the VM uses a custom DNS server, you must manually configure conditional forwarding to the Azure-provided DNS (168.63.129.16) for the privatelink zone, or create the appropriate A records in the custom DNS zone.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-104 question in full detail.
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: The private DNS zone linked to the VNet — When a private endpoint is created for a storage account, the DNS configuration must be updated so that the storage account's fully qualified domain name resolves to the private endpoint's private IP address instead of the public IP. Linking a private DNS zone (privatelink.blob.core.windows.net) to the virtual network and configuring a virtual network link ensures that the VM's DNS queries for the storage account are answered with the private endpoint IP. Without this, the VM continues to use the public IP from public DNS.
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.
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Question Discussion
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