The answer is Storage Blob Data Contributor assigned at the resource group scope. This is correct because the ARM template’s roleDefinitionId GUID maps specifically to the built-in Storage Blob Data Contributor role, while the scope property is set to the resource group’s ID, not a narrower storage account or broader subscription. On the Microsoft Azure Data Engineer Associate DP-203 exam, you must be able to interpret Azure RBAC role assignment ARM templates by matching GUIDs to known roles and identifying the scope property—a common trap is confusing the resource group scope with the subscription or resource-level scope. A reliable memory tip: the role GUID for Storage Blob Data Contributor ends in “ba92f5b4,” and the scope always follows the pattern /subscriptions/{id}/resourceGroups/{name}, so if you see that pattern without a deeper resource path, the scope is the resource group.
DP-203 Practice Question: Secure, monitor, and optimize data storage and data processing
This DP-203 practice question tests your understanding of secure, monitor, and optimize data storage and data processing. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
Exhibit
Refer to the exhibit.
{
"type": "Microsoft.Authorization/roleAssignments",
"apiVersion": "2020-04-01-preview",
"name": "[guid(resourceGroup().id, 'Storage Blob Data Contributor')]",
"properties": {
"roleDefinitionId": "[subscriptionResourceId('Microsoft.Authorization/roleDefinitions', 'ba92f5b4-2d11-453d-a403-e96b0029c9fe')]",
"principalId": "[parameters('principalId')]",
"scope": "[resourceGroup().id]"
}
}
You are reviewing an ARM template that assigns a role. What role is being assigned, and at what scope?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Storage Blob Data Contributor at the resource group scope
Option A is correct because the roleDefinitionId corresponds to 'Storage Blob Data Contributor', and the scope is the resource group. Option B is wrong because the scope is not the storage account. Option C is wrong because the role is not 'Storage Blob Data Reader' (the GUID is different). Option D is wrong because the scope is the resource group, not subscription.
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.
✗
Storage Blob Data Owner at the subscription scope
Why it's wrong here
The role and scope are incorrect.
✗
Storage Blob Data Reader at the resource group scope
Why it's wrong here
The GUID matches 'Storage Blob Data Contributor', not 'Data Reader'.
✓
Storage Blob Data Contributor at the resource group scope
Why this is correct
The roleDefinitionId is for 'Storage Blob Data Contributor' and scope is resourceGroup().id.
Related concept
Read the scenario before looking for a memorised answer.
✗
Storage Blob Data Contributor at the storage account scope
Why it's wrong here
The scope is the resource group, not the storage 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 DP-203 question in full detail.
Identify which DP-203 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.
Secure, monitor, and optimize data storage and data processing — This question tests Secure, monitor, and optimize data storage and data processing — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Storage Blob Data Contributor at the resource group scope — Option A is correct because the roleDefinitionId corresponds to 'Storage Blob Data Contributor', and the scope is the resource group. Option B is wrong because the scope is not the storage account. Option C is wrong because the role is not 'Storage Blob Data Reader' (the GUID is different). Option D is wrong because the scope is the resource group, not subscription.
What should I do if I get this DP-203 question wrong?
Identify which DP-203 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.
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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