- A
Enable a service endpoint for Microsoft.Storage on the subnet and add the subnet to the storage account network rules.
This is the correct pattern when you want to keep using the public endpoint while restricting traffic to a specific subnet. The service endpoint identifies the subnet as trusted, and the storage account firewall can then allow that subnet explicitly. It avoids the overhead of private endpoint DNS management while still reducing exposure.
- B
Create a private endpoint and disable the public endpoint.
Why wrong: This would work for private access, but the scenario explicitly says not to create a private endpoint or manage private DNS zones.
- C
Assign a SAS token to the subnet so only resources there can connect.
Why wrong: SAS is an authorization token for users or applications, not a subnet-based network control. It cannot restrict access by network location.
- D
Use an Azure Policy assignment to block public traffic to the storage account.
Why wrong: Azure Policy can enforce configuration, but it does not create the network path required for subnet-only connectivity. The right control here is storage networking configuration.
Quick Answer
The correct configuration is to enable a service endpoint for Microsoft.Storage on the subnet and then add that subnet to the storage account’s network rules. This works because a service endpoint extends the virtual network identity to the storage account over the Azure backbone, allowing you to restrict access from a specific subnet without using a private endpoint or managing private DNS zones. On the AZ-104 exam, this scenario tests your understanding of how service endpoints differ from private endpoints—specifically, that service endpoints keep the public endpoint enabled while filtering traffic by source subnet, whereas private endpoints assign a private IP. A common trap is assuming you must disable the public endpoint entirely, but the requirement here is to restrict, not remove, public access. Remember the key distinction: service endpoints are subnet-based and require no DNS changes, while private endpoints are resource-based and require private DNS zones. For a quick memory tip, think “service endpoint = subnet filter on the public endpoint,” and you’ll avoid confusing it with the more complex private endpoint setup.
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 team has an existing storage account with the public endpoint enabled. They want to allow access only from a specific subnet in a virtual network, but they do not want to create a private endpoint or manage private DNS zones. Which configuration should the administrator 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
Enable a service endpoint for Microsoft.Storage on the subnet and add the subnet to the storage account network rules.
Option A is correct because enabling a service endpoint for Microsoft.Storage on the subnet allows traffic from that subnet to the storage account over the Azure backbone network, and then adding the subnet to the storage account's network rules restricts access to only that subnet while keeping the public endpoint enabled. This meets the requirement of not using a private endpoint or managing private DNS zones.
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 a service endpoint for Microsoft.Storage on the subnet and add the subnet to the storage account network rules.
Why this is correct
This is the correct pattern when you want to keep using the public endpoint while restricting traffic to a specific subnet. The service endpoint identifies the subnet as trusted, and the storage account firewall can then allow that subnet explicitly. It avoids the overhead of private endpoint DNS management while still reducing exposure.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Create a private endpoint and disable the public endpoint.
Why it's wrong here
This would work for private access, but the scenario explicitly says not to create a private endpoint or manage private DNS zones.
- ✗
Assign a SAS token to the subnet so only resources there can connect.
Why it's wrong here
SAS is an authorization token for users or applications, not a subnet-based network control. It cannot restrict access by network location.
- ✗
Use an Azure Policy assignment to block public traffic to the storage account.
Why it's wrong here
Azure Policy can enforce configuration, but it does not create the network path required for subnet-only connectivity. The right control here is storage networking configuration.
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, thinking both require private DNS management, or mistakenly believe that a SAS token can be scoped to a network source, when in fact SAS tokens only control access to data operations, not network-level restrictions.
Trap categories for this question
Scenario analysis trap
This would work for private access, but the scenario explicitly says not to create a private endpoint or manage private DNS zones.
Detailed technical explanation
How to think about this question
Service endpoints for Microsoft.Storage work by adding the subnet's identity to the storage account's firewall rules, allowing traffic from that subnet to bypass the public internet and route through the Azure backbone. This is achieved by updating the route table on the subnet with a system route for the storage service's IP prefixes, and the storage account's network rules validate the source subnet ID in the packet's metadata. A real-world scenario is a multi-tier application where only the app tier in a specific subnet needs to write logs to a storage account, and using service endpoints avoids the cost and 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: Enable a service endpoint for Microsoft.Storage on the subnet and add the subnet to the storage account network rules. — Option A is correct because enabling a service endpoint for Microsoft.Storage on the subnet allows traffic from that subnet to the storage account over the Azure backbone network, and then adding the subnet to the storage account's network rules restricts access to only that subnet while keeping the public endpoint enabled. This meets the requirement of not using a private endpoint or managing private DNS zones.
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
1 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 storage account must stay reachable through its public endpoint, but only Azure workloads in AppSubnet should be allowed to access it. No private IP is required. What should you configure?
easy- A.A private endpoint in AppSubnet.
- ✓ B.A service endpoint on AppSubnet and a storage firewall VNet rule.
- C.A VPN gateway between AppSubnet and the storage account.
- D.A public IP address on the storage account.
Why B: A service endpoint on AppSubnet extends the Azure backbone network to the subnet, allowing traffic to the storage account's public endpoint without a private IP. The storage firewall VNet rule then restricts access to only traffic originating from that specific subnet, meeting the requirement of public endpoint reachability with Azure workload-only access.
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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