The answer is Azure Blueprints with locked assignment mode. This is correct because locked assignment mode applies a deny assignment to every resource deployed from the blueprint, making them immutable—no user, even with Owner permissions, can modify or delete those resources. On the Microsoft Azure Fundamentals AZ-900 exam, this question tests your understanding of governance tools that enforce compliance at scale, often appearing alongside concepts like Azure Policy and management groups. A common trap is confusing Azure Policy (which audits or modifies settings) with Blueprints’ ability to lock the entire resource lifecycle; remember that Policy tags properties, while Blueprints locks the resources themselves. For a quick memory tip, think “Blueprint locks the building blocks”—once the blueprint is assigned in locked mode, those resources are frozen in place, just like a finished blueprint that cannot be redrawn.
AZ-900 Describe Azure management and governance Practice Question
This AZ-900 practice question tests your understanding of describe azure management and governance. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 needs to ensure that Azure resources are deployed with specific settings enforced without the ability for any user to change them. Which approach achieves this?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Azure Blueprints with locked assignment mode
Azure Blueprints with locked assignment mode enforces that all resources deployed from the blueprint inherit the blueprint's configuration and cannot be modified or deleted by any user, including those with Owner permissions. This is achieved by setting the blueprint assignment to 'locked' mode, which applies a deny assignment to all resources created by the blueprint, ensuring settings are immutable.
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.
✗
Assign Contributor role to only trusted users
Why it's wrong here
Limiting Contributor role helps but doesn't prevent Contributors from changing settings.
✓
Azure Blueprints with locked assignment mode
Why this is correct
Blueprint locked assignments prevent deletion or modification of blueprint-managed resources, ensuring unchangeable configurations.
Related concept
Read the scenario before looking for a memorised answer.
✗
Azure Policy with audit effect
Why it's wrong here
Audit effect only reports non-compliance; it doesn't prevent users from changing settings.
✗
Azure Resource Manager conditional access
Why it's wrong here
Conditional access is an Azure AD identity feature; it doesn't enforce specific resource configurations.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse Azure Policy (which can enforce settings but does not lock resources) with Azure Blueprints (which can lock resources via assignment mode), leading them to choose Option C despite its inability to prevent changes.
Detailed technical explanation
How to think about this question
Azure Blueprints uses artifacts (e.g., policies, role assignments, Resource Manager templates) to define a repeatable environment. Locked assignment mode creates a deny assignment at the resource group scope, which overrides any role-based permissions, effectively making resources read-only for all users except the blueprint assignment service principal. This is critical for regulated industries like healthcare or finance where compliance baselines must remain unchanged.
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 company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-900 question in full detail.
Describe Azure management and governance — This question tests Describe Azure management and governance — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Azure Blueprints with locked assignment mode — Azure Blueprints with locked assignment mode enforces that all resources deployed from the blueprint inherit the blueprint's configuration and cannot be modified or deleted by any user, including those with Owner permissions. This is achieved by setting the blueprint assignment to 'locked' mode, which applies a deny assignment to all resources created by the blueprint, ensuring settings are immutable.
What should I do if I get this AZ-900 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.
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Question Discussion
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