- A
Enable anonymous blob access
Why wrong: Anonymous access affects authorization, not network path control, so it would not restrict internet traffic.
- B
Add a storage network rule for the subnet or use a private endpoint
Network rules can restrict access to allowed virtual network locations, and a private endpoint can place the service behind a private IP. Either approach supports controlled connectivity instead of internet exposure.
- C
Move the container to the Archive tier
Why wrong: Tiering changes storage cost and availability behavior, but it does not limit which networks can connect.
- D
Assign the Contributor role to the subnet
Why wrong: Azure RBAC does not assign roles to a subnet for storage network filtering, so this would not control access path.
Methods to Restrict Azure Storage Account to a Specific Subnet
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 should accept requests only from a specific virtual network subnet in Azure. The team does not want traffic to reach the public endpoint from the internet. 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
Add a storage network rule for the subnet or use a private endpoint
Option B is correct because Azure storage accounts can restrict access to specific virtual network subnets using service endpoints or private endpoints. A storage network rule for the subnet allows traffic only from that subnet, while a private endpoint maps the storage account to a private IP in the VNet, completely bypassing the public endpoint. This ensures no internet traffic reaches the public endpoint, meeting the requirement.
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.
- ✗
Enable anonymous blob access
Why it's wrong here
Anonymous access affects authorization, not network path control, so it would not restrict internet traffic.
When this WOULD be correct
When the requirement is to allow unauthenticated read access to blob containers (e.g., for hosting static websites or sharing public data) without needing shared access signatures or Azure AD authentication.
- ✓
Add a storage network rule for the subnet or use a private endpoint
Why this is correct
Network rules can restrict access to allowed virtual network locations, and a private endpoint can place the service behind a private IP. Either approach supports controlled connectivity instead of internet exposure.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Move the container to the Archive tier
Why it's wrong here
Tiering changes storage cost and availability behavior, but it does not limit which networks can connect.
- ✗
Assign the Contributor role to the subnet
Why it's wrong here
Azure RBAC does not assign roles to a subnet for storage network filtering, so this would not control access path.
When this WOULD be correct
An administrator needs to allow a specific subnet's virtual machines to manage storage account resources (e.g., create containers) while preventing other users from doing so. Assigning the Contributor role to the subnet's managed identity would be correct.
Option-by-option analysis
Why each answer is right or wrong
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The AZ-104 exam frequently reuses these exact scenarios with slightly different constraints.
✓Add a storage network rule for the subnet or use a private endpointCorrect answer▾
Why this is correct
Network rules can restrict access to allowed virtual network locations, and a private endpoint can place the service behind a private IP. Either approach supports controlled connectivity instead of internet exposure.
✗Enable anonymous blob accessWrong answer — click to see why▾
Why this is wrong here
Enabling anonymous blob access allows public read access to blob data without authentication, but does not restrict network traffic to a specific subnet or block internet access to the public endpoint.
★ When this WOULD be the correct answer
When the requirement is to allow unauthenticated read access to blob containers (e.g., for hosting static websites or sharing public data) without needing shared access signatures or Azure AD authentication.
Why candidates choose this
Candidates may confuse 'anonymous access' with 'network restriction' because both involve controlling access, but anonymous access controls authentication, not network-level traffic filtering.
✗Assign the Contributor role to the subnetWrong answer — click to see why▾
Why this is wrong here
Assigning the Contributor role to a subnet grants management permissions but does not restrict network access to the storage account's public endpoint; it does not block internet traffic.
★ When this WOULD be the correct answer
An administrator needs to allow a specific subnet's virtual machines to manage storage account resources (e.g., create containers) while preventing other users from doing so. Assigning the Contributor role to the subnet's managed identity would be correct.
Why candidates choose this
Candidates may confuse role-based access control (RBAC) with network security controls, thinking that assigning a role can restrict access to only that subnet.
Analysis generated from the official AZ-104blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse network-level access controls (like service endpoints or private endpoints) with RBAC roles or storage tier changes, mistakenly thinking that assigning a role or changing a tier can restrict network traffic.
Detailed technical explanation
How to think about this question
Service endpoints extend the VNet identity to the storage account, allowing firewall rules to accept traffic from the subnet's source IPs, but the public endpoint remains accessible (though firewalled). Private endpoints use Azure Private Link to create a network interface with a private IP in the VNet, completely removing exposure to the public internet; DNS resolution for the storage account resolves to the private IP within the VNet. In real-world scenarios, private endpoints are preferred for compliance and zero-trust architectures, while service endpoints are simpler but still leave the public endpoint exposed to potential misconfiguration.
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.
Visual reference
What to study next
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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: Add a storage network rule for the subnet or use a private endpoint — Option B is correct because Azure storage accounts can restrict access to specific virtual network subnets using service endpoints or private endpoints. A storage network rule for the subnet allows traffic only from that subnet, while a private endpoint maps the storage account to a private IP in the VNet, completely bypassing the public endpoint. This ensures no internet traffic reaches the public endpoint, meeting the requirement.
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
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