- A
Disable the storage account firewall and rely on the VM's source IP address.
Why wrong: Disabling the firewall would allow broader access and would not restrict usage to AppSubnet as required.
- B
Enable the Microsoft.Storage service endpoint on AppSubnet and allow that virtual network in the storage account firewall.
A service endpoint extends the subnet identity to the storage service while still using the public endpoint, which matches the requirement to avoid a private endpoint. After enabling the endpoint on AppSubnet, you can allow that virtual network in the storage account firewall so only traffic from the approved subnet can reach the account. This is a common network-control pattern for Azure Storage.
- C
Create a private endpoint and leave the firewall set to allow all networks.
Why wrong: A private endpoint would create private IP access, which the requirement explicitly says not to deploy. Allowing all networks would also remove the subnet restriction.
- D
Grant the VM Contributor access to the storage account and the network rule will be enforced automatically.
Why wrong: RBAC permissions do not control network reachability. Contributor access does not limit storage traffic to a specific subnet.
AZ-104 Implement and Manage Storage Practice Question
This AZ-104 practice question tests your understanding of implement and manage storage. 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.
An application on a VM in subnet AppSubnet must access a storage account over the public endpoint. The security team wants to allow traffic only from AppSubnet and does not want to deploy a private 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
Enable the Microsoft.Storage service endpoint on AppSubnet and allow that virtual network in the storage account firewall.
Option B is correct because enabling a Microsoft.Storage service endpoint on AppSubnet allows traffic from that subnet to the storage account over the Azure backbone network, while still using the public endpoint. Then, configuring the storage account firewall to allow that virtual network restricts access exclusively to AppSubnet, meeting the security requirement without deploying a 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.
- ✗
Disable the storage account firewall and rely on the VM's source IP address.
Why it's wrong here
Disabling the firewall would allow broader access and would not restrict usage to AppSubnet as required.
- ✓
Enable the Microsoft.Storage service endpoint on AppSubnet and allow that virtual network in the storage account firewall.
Why this is correct
A service endpoint extends the subnet identity to the storage service while still using the public endpoint, which matches the requirement to avoid a private endpoint. After enabling the endpoint on AppSubnet, you can allow that virtual network in the storage account firewall so only traffic from the approved subnet can reach the account. This is a common network-control pattern for Azure Storage.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Create a private endpoint and leave the firewall set to allow all networks.
Why it's wrong here
A private endpoint would create private IP access, which the requirement explicitly says not to deploy. Allowing all networks would also remove the subnet restriction.
- ✗
Grant the VM Contributor access to the storage account and the network rule will be enforced automatically.
Why it's wrong here
RBAC permissions do not control network reachability. Contributor access does not limit storage traffic to a specific subnet.
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 only private endpoints can restrict access, when in fact service endpoints combined with the storage account firewall can achieve subnet-level restriction over the public endpoint.
Detailed technical explanation
How to think about this question
Service endpoints extend the virtual network identity to Azure services, allowing traffic from the subnet to be routed over the Azure backbone instead of the public internet, and enabling the storage account firewall to filter by virtual network and subnet ID. The storage account firewall evaluates network rules before authentication, so even if a request has valid credentials, it is blocked if the source network is not allowed. In real-world scenarios, this approach avoids the cost and complexity of private endpoints while still providing subnet-level isolation, though it does not provide private IP connectivity.
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 Storage — This question tests Implement and Manage Storage — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Enable the Microsoft.Storage service endpoint on AppSubnet and allow that virtual network in the storage account firewall. — Option B is correct because enabling a Microsoft.Storage service endpoint on AppSubnet allows traffic from that subnet to the storage account over the Azure backbone network, while still using the public endpoint. Then, configuring the storage account firewall to allow that virtual network restricts access exclusively to AppSubnet, meeting the security requirement without deploying a 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.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
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Last reviewed: Jun 11, 2026
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