Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
A multinational company has a strict data residency requirement: all Azure virtual machines must be deployed only in the East US or West Europe Azure regions. The IT governance team wants to enforce this rule automatically so that any attempt to create a virtual machine in any other region is blocked immediately at the time of deployment. Users must receive a clear error message if they try to create a VM in a disallowed region. Which Azure feature should the governance team configure to meet this requirement?
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
Create a resource lock on the subscription to prevent all resource creation.
Resource locks (CanNotDelete or ReadOnly) are designed to protect resources from accidental deletion or modification, not to block the creation of new resources. A resource lock on the subscription would prevent deletion of the subscription itself, but it does not block deployments of virtual machines in disallowed regions.
B
Best answer
Configure an Azure Policy with the Deny effect assigned to the subscription scope.
Azure Policy with the Deny effect evaluates resource creation or update requests and denies them if they do not comply with the policy rules (e.g., VM location). The denial includes a clear error message explaining which policy prevented the action. This is the standard method to enforce location restrictions proactively.
C
Distractor review
Assign an Azure RBAC role that denies create permissions for VMs in disallowed regions.
Azure RBAC roles manage permissions based on actions (e.g., Microsoft.Compute/virtualMachines/write) but cannot easily restrict by resource property such as region. Even with a custom role, you would need to specify each disallowed region in NotActions, which is cumbersome and error-prone. Azure Policy is the correct service for rules based on resource properties.
D
Distractor review
Set up a budget alert in Cost Management to notify when a VM is created in a disallowed region.
Azure Cost Management budget alerts are designed to track spending and send notifications when costs exceed thresholds. They do not prevent resource creation and cannot enforce location restrictions. This solution is reactive, not proactive.
Common exam trap
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Technical deep dive
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
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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?
Static NAT maps one inside address to one outside address.
What is the correct answer to this question?
The correct answer is: Configure an Azure Policy with the Deny effect assigned to the subscription scope. — Azure Policy with the Deny effect is the correct choice because it proactively blocks the creation of non-compliant resources at deployment time and provides a clear error message explaining why the request was denied. Resource locks prevent deletion or modification, not creation. RBAC roles can be used to restrict access, but creating a custom role to deny creation in specific regions is complex and not the standard governance approach for this requirement. Cost Management budget alerts are reactive notifications and do not block resource creation.
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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