- A
A private endpoint for the storage account.
Why wrong: A private endpoint would give the storage account a private IP and usually changes the access pattern away from the public endpoint.
- B
A service endpoint for Microsoft.Storage.
A service endpoint extends the subnet's identity to the storage service and keeps traffic on the Azure backbone while still using the storage account's public endpoint. This fits when the organization wants network restriction by subnet without introducing a private IP for the service. The storage firewall can then allow only the selected subnet.
- C
A site-to-site VPN connection to the storage account.
Why wrong: VPN connects networks, not individual PaaS service access paths, and is unnecessary here.
- D
An application security group assigned to the storage account.
Why wrong: Application security groups are for NICs in NSG rules, not for securing Azure Storage.
Quick Answer
The answer is a service endpoint for Microsoft.Storage. This is correct because a service endpoint extends your virtual network’s identity to the storage account, allowing traffic from the specified subnet to reach the storage account’s public endpoint while staying entirely on the Azure backbone network—never traversing the public internet. On the AZ-104 exam, this scenario tests your understanding of the critical difference between service endpoints and private endpoints: a service endpoint keeps the public endpoint accessible but restricts access to a subnet, whereas a private endpoint assigns a private IP from your VNet and removes public endpoint access entirely. A common trap is choosing a private endpoint when the requirement explicitly states the public endpoint must remain reachable. Remember the key distinction: service endpoint = subnet access via public endpoint over Azure backbone; private endpoint = private IP access with public endpoint disabled. For a quick memory tip, think “service endpoint serves the subnet through the public door.”
AZ-104 Implement and Manage Virtual Networking Practice Question
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 company has a virtual machine in a subnet that must access an Azure Storage account. The storage account should remain reachable through its public endpoint, but access must be limited to that subnet, and the traffic should stay on the Azure backbone rather than the internet. Which feature should the administrator configure on the subnet?
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 service endpoint for Microsoft.Storage.
A service endpoint for Microsoft.Storage extends the virtual network identity to the storage account, allowing traffic from the subnet to the storage account's public endpoint to be routed over the Azure backbone network rather than the internet. This satisfies the requirement to limit access to the subnet while keeping the public endpoint reachable and traffic within Azure's infrastructure.
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 private endpoint for the storage account.
Why it's wrong here
A private endpoint would give the storage account a private IP and usually changes the access pattern away from the public endpoint.
- ✓
A service endpoint for Microsoft.Storage.
Why this is correct
A service endpoint extends the subnet's identity to the storage service and keeps traffic on the Azure backbone while still using the storage account's public endpoint. This fits when the organization wants network restriction by subnet without introducing a private IP for the service. The storage firewall can then allow only the selected subnet.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
A site-to-site VPN connection to the storage account.
- ✗
An application security group assigned to the storage account.
Why it's wrong here
Application security groups are for NICs in NSG rules, not for securing Azure Storage.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse private endpoints with service endpoints, mistakenly thinking a private endpoint is required to keep traffic on the Azure backbone, but a private endpoint removes public endpoint access, whereas a service endpoint preserves it while still routing traffic internally.
Detailed technical explanation
How to think about this question
Service endpoints use route optimization to direct traffic from the subnet to the storage account via the Azure backbone, bypassing the internet by adding a route with a next-hop type of 'VirtualNetworkServiceEndpoint' for the storage service's public IP prefix. This is implemented through the subnet's route table and the storage account's firewall rules, which allow only traffic from the specified subnet's virtual network identifier. A common real-world scenario is when a company wants to avoid data exfiltration risks by ensuring storage traffic never transits the public internet, yet still needs to use the storage account's public endpoint for compatibility with tools that require it.
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 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 service endpoint for Microsoft.Storage. — A service endpoint for Microsoft.Storage extends the virtual network identity to the storage account, allowing traffic from the subnet to the storage account's public endpoint to be routed over the Azure backbone network rather than the internet. This satisfies the requirement to limit access to the subnet while keeping the public endpoint reachable and traffic within Azure's infrastructure.
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. Based on the exhibit, which feature should you enable so the subnet can access the storage account without creating a private IP address in the VNet?
medium- A.Private endpoint
- ✓ B.Service endpoint
- C.VPN Gateway
- D.Azure Firewall
Why B: Service endpoints allow a subnet to securely and privately connect to Azure PaaS services (like Storage Accounts) over the Azure backbone network without requiring a private IP address in the VNet. They extend the VNet identity to the service, enabling access via the service's public endpoint while restricting traffic to the subnet. This matches the requirement exactly: no private IP is created in the VNet, and the storage account is accessed directly.
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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