- A
Create a private endpoint for the storage account and disable the public endpoint.
Why wrong: A private endpoint would give the storage account a private IP in the VNet, which the requirement explicitly does not want.
- B
Enable a service endpoint for Microsoft.Storage on the subnet and add the subnet to the storage account network rules.
A service endpoint lets the subnet reach the storage account over the Azure backbone while still using the storage account's public endpoint. Adding the subnet to the storage firewall allows only that subnet to connect. This meets the requirement to avoid a private IP while restricting access to a specific subnet.
- C
Allow trusted Microsoft services to bypass the firewall.
Why wrong: Trusted services bypass is for selected Microsoft services, not for limiting access to one customer-managed subnet.
- D
Add a user-defined route that points storage traffic to the virtual network gateway.
Why wrong: Routes affect where packets go, but they do not grant storage authorization or replace storage firewall rules.
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 runs on an Azure VM in a subnet and must access a storage account over the public endpoint without using a private IP address. The administrator wants to restrict access so only that subnet can reach the account. What should be configured?
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 a service endpoint for Microsoft.Storage on the subnet and add the subnet to the storage account network rules.
Option B is correct because a service endpoint for Microsoft.Storage extends the virtual network identity to the subnet, allowing the storage account firewall to accept traffic from that subnet via its public endpoint. This meets the requirement of restricting access to the storage account's public endpoint without using a private IP address.
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 endpoint for the storage account and disable the public endpoint.
Why it's wrong here
A private endpoint would give the storage account a private IP in the VNet, which the requirement explicitly does not want.
- ✓
Enable a service endpoint for Microsoft.Storage on the subnet and add the subnet to the storage account network rules.
Why this is correct
A service endpoint lets the subnet reach the storage account over the Azure backbone while still using the storage account's public endpoint. Adding the subnet to the storage firewall allows only that subnet to connect. This meets the requirement to avoid a private IP while restricting access to a specific subnet.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Allow trusted Microsoft services to bypass the firewall.
Why it's wrong here
Trusted services bypass is for selected Microsoft services, not for limiting access to one customer-managed subnet.
- ✗
Add a user-defined route that points storage traffic to the virtual network gateway.
Why it's wrong here
Routes affect where packets go, but they do not grant storage authorization or replace storage firewall rules.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse service endpoints with private endpoints, assuming that restricting access to a subnet requires a private IP, when service endpoints can achieve subnet-level restriction over the public endpoint without changing the IP addressing.
Detailed technical explanation
How to think about this question
Service endpoints use the source IP address of the VM (the public IP of the subnet's default outbound access) to match the storage account firewall rule, but the subnet's identity is tagged via the service endpoint route (0.0.0.0/0 to Microsoft.Storage). The storage account firewall evaluates the subnet's virtual network ID, not the VM's private IP, so traffic still flows over the public endpoint. In practice, this means the VM's outbound traffic to the storage account uses the subnet's public IP, but the firewall rule checks the subnet's VNet/Subnet ID, ensuring only traffic from that subnet is allowed.
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 a service endpoint for Microsoft.Storage on the subnet and add the subnet to the storage account network rules. — Option B is correct because a service endpoint for Microsoft.Storage extends the virtual network identity to the subnet, allowing the storage account firewall to accept traffic from that subnet via its public endpoint. This meets the requirement of restricting access to the storage account's public endpoint without using a private IP address.
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
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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