The answer is that the user lacks the Azure RBAC Reader role on the storage account’s resource group, which is required to navigate to the blob storage in the Azure portal. Even with the Storage Blob Data Reader role assigned for data plane access, the portal also relies on control plane permissions—specifically the Reader role—to list and display the storage account within the resource group. This tests your understanding of the dual-permission model in Azure, a common pitfall on the AZ-204 exam where candidates focus only on data roles and forget the portal’s need for resource visibility. A typical trap is assuming the Storage Blob Data Reader alone grants full portal access, but without the Reader role, the user cannot even see the storage account to select it. Remember the mnemonic: “To see the tree, you need the Reader key; to pick the fruit, you need the Data Reader.”
AZ-204 Implement Azure security Practice Question
This AZ-204 practice question tests your understanding of implement azure security. 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 sensitive data in Azure Blob Storage. They require that all access to the storage account be authenticated via Microsoft Entra ID and that users must have the 'Storage Blob Data Reader' role assigned. A developer reports being unable to read blobs using the Azure portal despite having the role assigned. What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The user does not have the Azure RBAC Reader role on the storage account's resource group to view the storage account in the portal.
Option D is correct because the Azure portal uses both the control plane (RBAC) and data plane permissions; even with Storage Blob Data Reader, if the user lacks a Reader role at the subscription or resource group level, they cannot navigate to the storage account. Option A is wrong because managed identity is not involved. Option B is wrong because firewall settings would affect all users. Option C is wrong because the role assignment is correct.
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.
✗
The storage account firewall is blocking the user's IP address.
Why it's wrong here
This would affect all access, not just the portal.
✓
The user does not have the Azure RBAC Reader role on the storage account's resource group to view the storage account in the portal.
Why this is correct
The portal requires Reader role to list resources, in addition to data permissions.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The storage account is using a system-assigned managed identity for authentication.
Why it's wrong here
Managed identity is not used for portal access.
✗
The role is assigned at the storage account scope but the user is trying to access a different storage account.
Why it's wrong here
The user would not have the role on the different account.
Common exam traps
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.
Detailed technical explanation
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.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-204 question in full detail.
Identify which AZ-204 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Implement Azure security — This question tests Implement Azure security — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The user does not have the Azure RBAC Reader role on the storage account's resource group to view the storage account in the portal. — Option D is correct because the Azure portal uses both the control plane (RBAC) and data plane permissions; even with Storage Blob Data Reader, if the user lacks a Reader role at the subscription or resource group level, they cannot navigate to the storage account. Option A is wrong because managed identity is not involved. Option B is wrong because firewall settings would affect all users. Option C is wrong because the role assignment is correct.
What should I do if I get this AZ-204 question wrong?
Identify which AZ-204 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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