- A
Assign the Storage Blob Data Owner role to the operations team.
Why wrong: This role grants full control over storage blob data, but it does not prevent deletion of the storage account itself. Users holding this role can still delete the account if they also have delete permissions at the storage account level.
- B
Apply a CanNotDelete resource lock on the storage account.
A CanNotDelete resource lock prevents the storage account from being deleted by any user or process, while allowing all other operations (such as reading and updating blobs) as long as the user has the necessary RBAC permissions. This meets the requirement exactly.
- C
Create an Azure Policy that denies delete operations on storage accounts.
Why wrong: Azure Policy can enforce rules across resources, but it is not a direct resource lock. Policy effects like 'Deny' can block operations, but they apply at the subscription or management group scope and can be more complex to configure. Additionally, policy exclusions could potentially allow deletions. A resource lock is the simpler and more targeted solution.
- D
Move the storage account to a new resource group.
Why wrong: Moving the storage account to a different resource group does not provide any protection against deletion. The storage account can still be deleted from the new resource group by users with appropriate permissions.
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 stores critical financial records in an Azure Storage account. The operations team needs to ensure that the storage account cannot be deleted by any user, including administrators with Contributor permissions. However, authorized users must still be able to add and modify blobs. The solution should not affect the ability to update the account's configuration. Which Azure feature should the company implement?
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
Apply a CanNotDelete resource lock on the storage account.
A CanNotDelete resource lock on the storage account prevents any user, including those with Contributor permissions, from deleting the resource. This satisfies the requirement that even administrators cannot delete the account, while still allowing authorized users to add and modify blobs (since blob operations are controlled by Azure RBAC roles, not the lock) and update the account's configuration (the lock only blocks delete operations).
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 the Storage Blob Data Owner role to the operations team.
Why it's wrong here
This role grants full control over storage blob data, but it does not prevent deletion of the storage account itself. Users holding this role can still delete the account if they also have delete permissions at the storage account level.
- ✓
Apply a CanNotDelete resource lock on the storage account.
Why this is correct
A CanNotDelete resource lock prevents the storage account from being deleted by any user or process, while allowing all other operations (such as reading and updating blobs) as long as the user has the necessary RBAC permissions. This meets the requirement exactly.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Create an Azure Policy that denies delete operations on storage accounts.
Why it's wrong here
Azure Policy can enforce rules across resources, but it is not a direct resource lock. Policy effects like 'Deny' can block operations, but they apply at the subscription or management group scope and can be more complex to configure. Additionally, policy exclusions could potentially allow deletions. A resource lock is the simpler and more targeted solution.
- ✗
Move the storage account to a new resource group.
Why it's wrong here
Moving the storage account to a different resource group does not provide any protection against deletion. The storage account can still be deleted from the new resource group by users with appropriate permissions.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse Azure Policy with resource locks, thinking a policy can prevent deletion of a specific resource, when in fact resource locks are the correct tool for that purpose, while Azure Policy is used for broader compliance and governance rules across resources.
Detailed technical explanation
How to think about this question
Resource locks in Azure are applied at the resource, resource group, or subscription level and override any RBAC permissions, including Owner, by enforcing a deny on the specified operation (Delete or ReadOnly). The CanNotDelete lock uses the Azure Resource Manager's lock mechanism, which is evaluated after RBAC authorization, ensuring that even an Owner cannot delete the resource until the lock is removed. This is distinct from Azure Policy, which uses policy definitions to audit or enforce compliance rules but does not directly block delete operations in the same immediate, resource-level manner.
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-900 question test?
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: Apply a CanNotDelete resource lock on the storage account. — A CanNotDelete resource lock on the storage account prevents any user, including those with Contributor permissions, from deleting the resource. This satisfies the requirement that even administrators cannot delete the account, while still allowing authorized users to add and modify blobs (since blob operations are controlled by Azure RBAC roles, not the lock) and update the account's configuration (the lock only blocks delete operations).
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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Last reviewed: Jun 11, 2026
This AZ-900 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-900 exam.
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