- A
Create a private DNS zone for privatelink.blob.core.windows.net.
The private DNS zone maps the blob service name to the private endpoint namespace for name resolution.
- B
Link the private DNS zone to the VNet used by AppSubnet.
Linking the zone to the VNet lets AppSubnet resolve the storage name to the private IP address.
- C
Enable a service endpoint for Microsoft.Storage on the subnet.
Why wrong: A service endpoint does not fix DNS resolution to the private endpoint address or provide a private IP.
- D
Set the storage account firewall to Selected networks without a private endpoint.
Why wrong: Firewall rules alone cannot correct DNS resolution when clients still resolve the public storage hostname.
- E
Assign a static public IP to the private endpoint.
Why wrong: Private endpoints use private IP addresses, and a static public IP would defeat the private-only design.
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 storage account already has a private endpoint for Blob service in a VNet. Virtual machines in AppSubnet still resolve the account name to the public endpoint, so traffic never reaches the private IP. Which two actions should the administrator take? Select two.
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"never"Why it matters: Absolute qualifier. True only if the statement has zero exceptions — be cautious of options that seem obvious but break down in edge cases.
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
Create a private DNS zone for privatelink.blob.core.windows.net.
Option A is correct because a private DNS zone for `privatelink.blob.core.windows.net` is required to override the default public DNS resolution for the storage account. When a private endpoint is created, the storage account's FQDN (e.g., `mystorageaccount.blob.core.windows.net`) must resolve to the private IP address of the endpoint within the VNet. Without this DNS zone, the VM in AppSubnet will continue to resolve the name to the public IP via Azure's public DNS servers, bypassing 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 private DNS zone for privatelink.blob.core.windows.net.
Why this is correct
The private DNS zone maps the blob service name to the private endpoint namespace for name resolution.
Clue confirmation
The clue word "never" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Link the private DNS zone to the VNet used by AppSubnet.
Why this is correct
Linking the zone to the VNet lets AppSubnet resolve the storage name to the private IP address.
Clue confirmation
The clue word "never" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Enable a service endpoint for Microsoft.Storage on the subnet.
Why it's wrong here
A service endpoint does not fix DNS resolution to the private endpoint address or provide a private IP.
- ✗
Set the storage account firewall to Selected networks without a private endpoint.
- ✗
Assign a static public IP to the private endpoint.
Why it's wrong here
Private endpoints use private IP addresses, and a static public IP would defeat the private-only design.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse service endpoints with private endpoints, assuming that enabling a service endpoint alone will redirect traffic to the private IP, when in fact DNS resolution must be explicitly configured via a private DNS zone.
Detailed technical explanation
How to think about this question
The private endpoint creates a network interface (NIC) with a private IP in the VNet, but DNS resolution is controlled by Azure's default DNS or custom DNS servers. To enable automatic resolution of the storage account FQDN to the private IP, you must create a private DNS zone (`privatelink.blob.core.windows.net`) and link it to the VNet. This leverages Azure's DNS resolution chain: the VM queries the VNet's DNS server, which checks for a private DNS zone before falling back to public DNS. In real-world scenarios, if the VNet uses custom DNS servers, you must manually configure conditional forwarding to Azure's internal resolver (168.63.129.16) for the `privatelink` suffix.
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.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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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: Create a private DNS zone for privatelink.blob.core.windows.net. — Option A is correct because a private DNS zone for `privatelink.blob.core.windows.net` is required to override the default public DNS resolution for the storage account. When a private endpoint is created, the storage account's FQDN (e.g., `mystorageaccount.blob.core.windows.net`) must resolve to the private IP address of the endpoint within the VNet. Without this DNS zone, the VM in AppSubnet will continue to resolve the name to the public IP via Azure's public DNS servers, bypassing 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.
Are there clue words in this question I should notice?
Yes — watch for: "never". Absolute qualifier. True only if the statement has zero exceptions — be cautious of options that seem obvious but break down in edge cases.
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
This AZ-104 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the AZ-104 exam.
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