Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
A company stores sensitive customer data in an Azure Blob Storage account. The company's security policy requires that all data traffic between the virtual network (VNet) and the storage account must never traverse the public internet. Additionally, the storage account must remain accessible from an on-premises data center through a Site-to-Site VPN connection. Which Azure feature should the company configure on the storage account?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Distractor review
Azure service endpoints
Service endpoints extend the VNet identity to Azure services, but traffic still reaches the public endpoint of the storage account. While service endpoints keep traffic on the Microsoft backbone, they do not provide a private IP address; the storage account remains accessible via its public IP address, which is not desired when the policy explicitly forbids any traffic traversing the public internet. Additionally, service endpoints do not natively support on-premises access to the storage account via a Site-to-Site VPN without additional configuration.
B
Best answer
Azure Private Link (using a private endpoint)
A private endpoint creates a network interface with a private IP address in the VNet. Traffic to the storage account goes over the Microsoft backbone without ever leaving the VNet or touching the public internet. Because the storage account appears inside the VNet, on-premises access via Site-to-Site VPN is naturally possible. This meets both requirements.
C
Distractor review
Azure VPN Gateway connection to the storage account
An Azure VPN Gateway provides encrypted connectivity between on-premises and an Azure VNet. However, it does not secure the storage account itself. Without a private endpoint, the storage account still uses a public endpoint, and traffic from the VNet to the storage account would leave the VNet over the public internet (or via Microsoft backbone if service endpoints are configured).
D
Distractor review
Azure route tables
Route tables control custom routing within a VNet. While they can force traffic to use a specific next hop (e.g., a firewall or VPN appliance), they cannot change the fact that the storage account's public endpoint is reachable over the internet. Route tables do not provide private connectivity to Azure PaaS services.
Common exam trap
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Technical deep dive
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- 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.
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More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A developer is building a serverless application that requires integration with an on-premises SQL Server database for real-time data processing. The on-premises network is connected to Azure via a site-to-site VPN. Which Azure service would allow the function to securely access the on-premises database without exposing it to the public internet?
Question 2
A solutions architect is designing a storage solution for a large media company. The company needs to store video files that are accessed infrequently but must be retained for several years for compliance. Which two Azure storage options meet these requirements? (Select two.)
Question 3
A company deploys a multi-tier application using Azure virtual machines. The web tier VMs must be evenly distributed across two distinct data centers within an Azure region to avoid a single point of failure from an infrastructure outage. Which Azure construct should they use to meet this requirement?
Question 4
A company wants to enforce a set of security policies across all their Azure subscriptions. They have created several individual policy definitions. Which Azure construct should they use to group these policies together and assign them as a single package?
Question 5
A company deploys a line-of-business application on an Azure virtual machine. The IT team wants to ensure the application remains secure. According to the shared responsibility model, which of the following security tasks is the sole responsibility of the customer (the company)?
Question 6
A company develops a web API that runs on Azure App Service. The development team wants to deploy a new version of the API to a staging environment, run integration tests against it, and then gradually shift production traffic to the new version. If any issues are detected, they want to immediately roll back to the previous version without redeploying. Which Azure App Service feature should the team use to meet these requirements?
FAQ
Questions learners often ask
What does this AZ-900 question test?
Read the scenario before looking for a memorised answer.
What is the correct answer to this question?
The correct answer is: Azure Private Link (using a private endpoint) — To ensure that traffic between a VNet and Azure Storage never traverses the public internet, you must use a private endpoint. A private endpoint assigns a private IP address from the VNet to the storage account, so all traffic stays on the Microsoft Azure backbone network. This also allows connectivity from on-premises via Site-to-Site VPN or ExpressRoute because the storage account becomes part of the VNet's private address space. Service endpoints do not provide a private IP; they still use the public endpoint of the storage service, which is accessible over the internet. Azure VPN Gateway facilitates connectivity but does not secure individual storage accounts with private connectivity. Route tables control traffic routing but cannot guarantee that traffic stays off the public internet.
What should I do if I get this AZ-900 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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