- A
Apply a CanNotDelete lock to RG-Prod.
CanNotDelete protects the resource group and its resources from accidental deletion while still allowing normal updates.
- B
Apply a ReadOnly lock to RG-Prod.
Why wrong: ReadOnly would block necessary updates and is more disruptive than the requirement calls for.
- C
Use Azure Policy with a Modify effect to add the CostCenter tag to new resources.
Modify is the right policy effect when the organization wants tagging enforced automatically without blocking deployments.
- D
Grant Reader to the finance team on the resource group.
Why wrong: Reader provides visibility only and does not prevent deletion or enforce tags.
- E
Create a private endpoint for RG-Prod.
Why wrong: Private endpoints are a networking feature and have no effect on deletion prevention or tag governance.
Combine CanNotDelete Lock and Modify Policy
This AZ-104 practice question tests your understanding of manage azure identities and governance. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
RG-Prod hosts line-of-business workloads. The business wants to prevent accidental deletion of the resource group during change freezes and also ensure every new resource carries a CostCenter tag for chargeback. Which two governance controls should be used? Select two.
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 lock to RG-Prod.
Option A is correct because applying a CanNotDelete lock to RG-Prod prevents the resource group from being deleted during change freezes, which directly meets the requirement to prevent accidental deletion. This lock type allows read and update operations but blocks delete operations, making it ideal for protecting critical resources without impacting ongoing workloads.
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.
- ✓
Apply a CanNotDelete lock to RG-Prod.
Why this is correct
CanNotDelete protects the resource group and its resources from accidental deletion while still allowing normal updates.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Apply a ReadOnly lock to RG-Prod.
Why it's wrong here
ReadOnly would block necessary updates and is more disruptive than the requirement calls for.
When this WOULD be correct
If the business required that no changes (including updates) be made to the resource group or its resources during a freeze period, a ReadOnly lock would be the correct choice to enforce complete read-only access.
- ✓
Use Azure Policy with a Modify effect to add the CostCenter tag to new resources.
Why this is correct
Modify is the right policy effect when the organization wants tagging enforced automatically without blocking deployments.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Grant Reader to the finance team on the resource group.
Why it's wrong here
Reader provides visibility only and does not prevent deletion or enforce tags.
When this WOULD be correct
If the question asked for a control to allow the finance team to view resource costs without making changes, granting Reader access to the resource group would be correct. For example: 'Which role should you assign to the finance team so they can monitor resource usage without modifying resources?'
- ✗
Create a private endpoint for RG-Prod.
Why it's wrong here
Private endpoints are a networking feature and have no effect on deletion prevention or tag governance.
When this WOULD be correct
In a scenario where a company needs to ensure that a storage account in RG-Prod is accessed only over a private network from a specific VNet, and all public access must be disabled, creating a private endpoint for that storage account would be the correct governance control.
Option-by-option analysis
Why each answer is right or wrong
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The AZ-104 exam frequently reuses these exact scenarios with slightly different constraints.
✓Apply a CanNotDelete lock to RG-Prod.Correct answer▾
Why this is correct
CanNotDelete protects the resource group and its resources from accidental deletion while still allowing normal updates.
✗Apply a ReadOnly lock to RG-Prod.Wrong answer — click to see why▾
Why this is wrong here
A ReadOnly lock prevents any changes, including updates and deletions, but the requirement is only to prevent accidental deletion during change freezes, not to block all modifications. Additionally, it does not address the CostCenter tag requirement.
★ When this WOULD be the correct answer
If the business required that no changes (including updates) be made to the resource group or its resources during a freeze period, a ReadOnly lock would be the correct choice to enforce complete read-only access.
Why candidates choose this
Candidates may confuse ReadOnly lock with CanNotDelete lock, thinking any lock prevents deletion, but ReadOnly is more restrictive than needed and fails to meet the tag requirement.
✗Grant Reader to the finance team on the resource group.Wrong answer — click to see why▾
Why this is wrong here
Granting Reader permission to the finance team allows them to view resources but does not enforce tagging or prevent deletion. The question requires preventing accidental deletion and ensuring a CostCenter tag on new resources, which Reader cannot achieve.
★ When this WOULD be the correct answer
If the question asked for a control to allow the finance team to view resource costs without making changes, granting Reader access to the resource group would be correct. For example: 'Which role should you assign to the finance team so they can monitor resource usage without modifying resources?'
Why candidates choose this
Candidates may think Reader is a governance control because it restricts write access, but it does not prevent deletion (locks do) or enforce tagging (policy does). The term 'governance' is broad, leading to confusion between access control and resource governance.
✗Create a private endpoint for RG-Prod.Wrong answer — click to see why▾
Why this is wrong here
A private endpoint secures network connectivity to a PaaS service (e.g., Storage, SQL) by giving it a private IP in a VNet, not a resource group. It does not prevent deletion or enforce tagging.
★ When this WOULD be the correct answer
In a scenario where a company needs to ensure that a storage account in RG-Prod is accessed only over a private network from a specific VNet, and all public access must be disabled, creating a private endpoint for that storage account would be the correct governance control.
Why candidates choose this
Candidates may confuse 'private endpoint' with a general governance tool, thinking it 'locks down' the resource group, or they may misapply the concept of 'private' as a form of access control beyond networking.
Analysis generated from the official AZ-104blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse a ReadOnly lock with a CanNotDelete lock, assuming any lock prevents deletion, but ReadOnly locks also block updates, which would break production workloads, while the correct choice is the less restrictive CanNotDelete lock for deletion prevention only.
Detailed technical explanation
How to think about this question
Azure Resource Manager locks are applied at the management group, subscription, resource group, or resource scope and are inherited by child resources; a CanNotDelete lock prevents delete operations but still allows all other operations, including modifications. Azure Policy with a Modify effect uses a managed identity to automatically add or alter tags on new or existing resources during resource creation or update, ensuring compliance without manual intervention. The Modify effect is evaluated during resource creation and can be combined with a policy definition that targets specific resource types or scopes.
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 startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
What to study next
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FAQ
Questions learners often ask
What does this AZ-104 question test?
Manage Azure Identities and Governance — This question tests Manage Azure Identities 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 lock to RG-Prod. — Option A is correct because applying a CanNotDelete lock to RG-Prod prevents the resource group from being deleted during change freezes, which directly meets the requirement to prevent accidental deletion. This lock type allows read and update operations but blocks delete operations, making it ideal for protecting critical resources without impacting ongoing workloads.
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
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Last reviewed: Jun 11, 2026
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