- A
Create a service endpoint on the subnet and allow that subnet in the storage account firewall.
A service endpoint is the correct design because it restricts access to a specific subnet without creating a private IP address for the storage account. The storage account can continue to use its public FQDN, which matches the requirement. By enabling the service endpoint on the subnet and then permitting that subnet in the storage firewall, traffic is locked down while avoiding private endpoint and private DNS complexity.
- B
Create a private endpoint for the storage account and disable public network access.
Why wrong: Private endpoints create a private IP address in the VNet, which the scenario explicitly does not want.
- C
Use an NSG rule to allow only the subnet to reach port 443 on the storage account.
Why wrong: NSGs do not filter traffic to a PaaS storage account in the way a storage firewall or endpoint feature does.
- D
Associate a route table that sends storage traffic to an Azure firewall appliance.
Why wrong: Routing controls next hop selection, but it does not by itself grant subnet-only access to the storage account.
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.
A storage account must be accessible only from one Azure subnet. The security team does not want a private endpoint or private DNS zone, and they are fine with the storage account continuing to use its public FQDN. 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
Create a service endpoint on the subnet and allow that subnet in the storage account firewall.
Option A is correct because a service endpoint extends the virtual network identity to the Azure Storage service, allowing the storage account firewall to restrict access to traffic originating from the specific subnet. This meets the requirement of limiting access to one Azure subnet without using a private endpoint or DNS zone, and the storage account continues to use its public FQDN.
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 service endpoint on the subnet and allow that subnet in the storage account firewall.
Why this is correct
A service endpoint is the correct design because it restricts access to a specific subnet without creating a private IP address for the storage account. The storage account can continue to use its public FQDN, which matches the requirement. By enabling the service endpoint on the subnet and then permitting that subnet in the storage firewall, traffic is locked down while avoiding private endpoint and private DNS complexity.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Create a private endpoint for the storage account and disable public network access.
Why it's wrong here
Private endpoints create a private IP address in the VNet, which the scenario explicitly does not want.
- ✗
Use an NSG rule to allow only the subnet to reach port 443 on the storage account.
- ✗
Associate a route table that sends storage traffic to an Azure firewall appliance.
Why it's wrong here
Routing controls next hop selection, but it does not by itself grant subnet-only access to the storage account.
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 restricting access to a subnet requires a private IP address, when in fact service endpoints provide subnet-level access control while preserving the public endpoint.
Trap categories for this question
Scenario analysis trap
Private endpoints create a private IP address in the VNet, which the scenario explicitly does not want.
Detailed technical explanation
How to think about this question
Service endpoints use the source IP address of the virtual network's subnet, which is translated to a virtual network ID by the Azure platform, allowing the storage account firewall to permit traffic based on the virtual network and subnet. This mechanism does not require a private IP address for the storage account, so the public FQDN remains in use. A common real-world scenario is when an organization wants to restrict storage access to a specific subnet for compliance without incurring the cost or complexity of private endpoints.
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: Create a service endpoint on the subnet and allow that subnet in the storage account firewall. — Option A is correct because a service endpoint extends the virtual network identity to the Azure Storage service, allowing the storage account firewall to restrict access to traffic originating from the specific subnet. This meets the requirement of limiting access to one Azure subnet without using a private endpoint or DNS zone, and the storage account continues to use its public FQDN.
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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