- A
A service endpoint on the subnet and a storage firewall rule
Why wrong: Service endpoints do not give the storage account a private IP address in the VNet.
- B
A private endpoint and a private DNS zone linked to the VNet
A private endpoint places a private IP address for the storage service in the VNet, and the private DNS zone ensures the service name resolves to that private IP. Together, they provide private access while allowing public network access to be disabled.
- C
A public IP address and IP-based firewall exceptions
Why wrong: This keeps the service publicly reachable and does not meet the private-only requirement.
- D
A shared access signature and blob container ACLs
Why wrong: SAS and ACLs control authorization, not private network path or DNS resolution.
How to Make Azure Storage Accessible Only from One Virtual Network Using Private Endpoint
This AZ-104 practice question tests your understanding of implement and manage virtual networking. 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 reachable only from one Azure virtual network. The team wants the storage service to have a private IP in that VNet, public network access disabled, and name resolution to work without using the public 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
A private endpoint and a private DNS zone linked to the VNet
A private endpoint assigns the storage account a private IP from the VNet's address space, making it reachable only within that VNet. Disabling public network access ensures no traffic can reach the storage account via its public endpoint. A private DNS zone linked to the VNet enables name resolution to resolve the storage account's FQDN to the private IP without using the public 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.
- ✗
A service endpoint on the subnet and a storage firewall rule
Why it's wrong here
Service endpoints do not give the storage account a private IP address in the VNet.
When this WOULD be correct
This option would be correct if the requirement was to restrict access to the storage account from a specific VNet while still using the public endpoint, and the team did not need a private IP or to disable public network access entirely.
- ✓
A private endpoint and a private DNS zone linked to the VNet
Why this is correct
A private endpoint places a private IP address for the storage service in the VNet, and the private DNS zone ensures the service name resolves to that private IP. Together, they provide private access while allowing public network access to be disabled.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
A public IP address and IP-based firewall exceptions
Why it's wrong here
This keeps the service publicly reachable and does not meet the private-only requirement.
When this WOULD be correct
This option would be correct if the question required allowing access from a specific set of public IP addresses (e.g., on-premises or remote locations) while still using the public endpoint, and there was no requirement for private IP or disabling public access.
- ✗
A shared access signature and blob container ACLs
Why it's wrong here
SAS and ACLs control authorization, not private network path or DNS resolution.
When this WOULD be correct
This option would be correct in a scenario where the requirement is to grant time-limited, delegated access to specific blobs or containers for external users or applications, while still using the public endpoint. For example, 'A storage account must allow temporary read access to a specific blob for an external partner without sharing the account key.'
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.
✓A private endpoint and a private DNS zone linked to the VNetCorrect answer▾
Why this is correct
A private endpoint places a private IP address for the storage service in the VNet, and the private DNS zone ensures the service name resolves to that private IP. Together, they provide private access while allowing public network access to be disabled.
✗A service endpoint on the subnet and a storage firewall ruleWrong answer — click to see why▾
Why this is wrong here
A service endpoint and firewall rule do not assign a private IP to the storage account; the service endpoint only provides source IP restriction from the VNet, and the storage account still uses its public endpoint, failing the requirement for a private IP and disabled public network access.
★ When this WOULD be the correct answer
This option would be correct if the requirement was to restrict access to the storage account from a specific VNet while still using the public endpoint, and the team did not need a private IP or to disable public network access entirely.
Why candidates choose this
Candidates may confuse service endpoints with private endpoints, thinking that a service endpoint provides private connectivity, or they may believe that a firewall rule alone can make the storage account unreachable from the internet.
✗A public IP address and IP-based firewall exceptionsWrong answer — click to see why▾
Why this is wrong here
Option C suggests using a public IP and IP-based firewall exceptions, but the requirement is to disable public network access and use a private IP within the VNet. Public IP and firewall rules still expose the storage account to the internet, violating the 'public network access disabled' condition.
★ When this WOULD be the correct answer
This option would be correct if the question required allowing access from a specific set of public IP addresses (e.g., on-premises or remote locations) while still using the public endpoint, and there was no requirement for private IP or disabling public access.
Why candidates choose this
Candidates may think that restricting access via IP firewall rules is sufficient to secure the storage account, overlooking the need for a private IP and complete removal of public endpoint access as specified in the question.
✗A shared access signature and blob container ACLsWrong answer — click to see why▾
Why this is wrong here
A shared access signature (SAS) and blob container ACLs provide granular access control and temporary delegated access, but they do not restrict network access to a single VNet, assign a private IP, or disable the public endpoint. They operate over the public endpoint and do not meet the requirement for private network integration.
★ When this WOULD be the correct answer
This option would be correct in a scenario where the requirement is to grant time-limited, delegated access to specific blobs or containers for external users or applications, while still using the public endpoint. For example, 'A storage account must allow temporary read access to a specific blob for an external partner without sharing the account key.'
Why candidates choose this
Candidates may confuse access control mechanisms (SAS, ACLs) with network-level security controls, thinking that restricting access via SAS and ACLs can replace the need for network isolation and private IP assignment.
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 confuse service endpoints with private endpoints, assuming a service endpoint provides a private IP and disables public access, when in fact it only routes traffic over the Microsoft backbone while still using the public endpoint.
Detailed technical explanation
How to think about this question
A private endpoint uses a network interface (NIC) in the VNet with a private IP from the subnet, leveraging Azure Private Link to tunnel traffic to the PaaS service over the Microsoft backbone. The private DNS zone (e.g., privatelink.blob.core.windows.net) must be linked to the VNet and configured with an A record for the private IP; without it, clients would still resolve the public IP via public DNS, breaking the isolation. In a real-world scenario, if the private DNS zone is not linked to the VNet, name resolution fails, and clients must use the private IP directly or configure custom DNS servers.
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
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 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: A private endpoint and a private DNS zone linked to the VNet — A private endpoint assigns the storage account a private IP from the VNet's address space, making it reachable only within that VNet. Disabling public network access ensures no traffic can reach the storage account via its public endpoint. A private DNS zone linked to the VNet enables name resolution to resolve the storage account's FQDN to the private IP without using the public 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 →
Same concept, more angles
3 more ways this is tested on AZ-104
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A company wants an Azure Storage account to be reachable privately from a virtual network. Which two statements about a private endpoint are correct? Select two.
easy- ✓ A.The storage service gets a private IP address in the selected virtual network.
- B.The virtual machine that reaches the service must have its own public IP address.
- C.A private endpoint replaces the need for any DNS configuration.
- ✓ D.A private DNS zone is commonly used so the service name resolves to the private IP.
- E.A private endpoint and a service endpoint are the same feature.
Why A: Option A is correct because a private endpoint assigns the Azure Storage service a private IP address from the subnet of the selected virtual network, effectively bringing the service into the VPC-like environment. This ensures that traffic to the storage account stays within the Microsoft backbone network and never traverses the public internet, meeting private connectivity requirements.
Variation 2. A storage account must be reachable only from resources in one Azure subnet, and traffic must use a private IP rather than the public endpoint. Which configuration should the administrator implement?
easy- A.A service endpoint on the subnet
- ✓ B.A private endpoint in the subnet
- C.A shared access signature scoped to the subnet
- D.Allow trusted Microsoft services on the storage firewall
Why B: A private endpoint assigns a private IP address from the subnet to the storage account, making it accessible only via that private IP within the virtual network. This ensures traffic never traverses the public endpoint, meeting both the reachability and private IP requirements.
Variation 3. A storage account must be reachable only from a single Azure VNet. The team wants the storage account to have a private IP in that VNet and wants to disable public network access. Which solution should the administrator implement?
medium- A.Configure a service endpoint on the subnet and keep public network access enabled.
- ✓ B.Create a private endpoint for the storage account and disable public network access.
- C.Assign a shared access signature and rely on IP-based firewall rules.
- D.Use a route table to force traffic to the storage account over the virtual network gateway.
Why B: A private endpoint assigns the storage account a private IP from the VNet, making it accessible only within that VNet over a private connection. Disabling public network access ensures no traffic can reach the storage account from the internet, meeting both requirements. This is the only option that provides a private IP and blocks all public access.
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Last reviewed: Jun 11, 2026
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