- A
Storage Blob Data Contributor at the configs container scope
This role grants the blob data permissions the automation job needs while avoiding storage account keys or SAS tokens. Assigning it at the container scope ensures the identity can work only inside the configs container and cannot touch unrelated containers. It is the narrowest assignment that still allows upload and overwrite operations, which makes it the best least-privilege choice.
- B
Storage Blob Data Owner at the storage account scope
Why wrong: This would grant broader permissions than necessary and at a much wider scope than the single container.
- C
Contributor at the resource group scope
Why wrong: Contributor is an ARM management role, not a blob data role, so it does not authorize uploads to the container data plane.
- D
Storage Queue Data Contributor at the storage account scope
Why wrong: This role applies to queue storage, not blob containers, so it would not authorize JSON file uploads.
AZ-104 Implement and Manage Storage Practice Question
This AZ-104 practice question tests your understanding of implement and manage storage. 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.
An Azure Automation job running on a VM uses a managed identity to upload and overwrite JSON files in one container named configs. The job must not list, delete, or modify any other containers in the storage account. Which role assignment is the best choice?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"best"Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
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
Storage Blob Data Contributor at the configs container scope
The Storage Blob Data Contributor role at the container scope grants the managed identity the necessary permissions to upload and overwrite blobs (including JSON files) within the 'configs' container, while explicitly preventing listing, deleting, or modifying other containers in the storage account. This role includes the 'Microsoft.Storage/storageAccounts/blobServices/containers/blobs/write' action, which allows overwriting existing blobs, but does not include any actions on the container itself (like listing or deleting containers) or on other containers. Scoping the role to the specific container ensures the principle of least privilege is strictly followed.
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 Contributor at the configs container scope
Why this is correct
This role grants the blob data permissions the automation job needs while avoiding storage account keys or SAS tokens. Assigning it at the container scope ensures the identity can work only inside the configs container and cannot touch unrelated containers. It is the narrowest assignment that still allows upload and overwrite operations, which makes it the best least-privilege choice.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Storage Blob Data Owner at the storage account scope
Why it's wrong here
This would grant broader permissions than necessary and at a much wider scope than the single container.
- ✗
Contributor at the resource group scope
Why it's wrong here
Contributor is an ARM management role, not a blob data role, so it does not authorize uploads to the container data plane.
- ✗
Storage Queue Data Contributor at the storage account scope
Why it's wrong here
This role applies to queue storage, not blob containers, so it would not authorize JSON file uploads.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often choose Storage Blob Data Owner at the storage account scope (Option B) because they think 'Owner' is necessary for overwriting files, but they overlook that 'Contributor' at the container scope already includes write permission and avoids granting excessive container management rights.
Detailed technical explanation
How to think about this question
Under the hood, Azure RBAC for Blob storage uses specific action strings like 'Microsoft.Storage/storageAccounts/blobServices/containers/blobs/write' for blob upload/overwrite, and 'Microsoft.Storage/storageAccounts/blobServices/containers/delete' for container deletion. By scoping the role to the container resource ID (e.g., '/subscriptions/{sub}/resourceGroups/{rg}/providers/Microsoft.Storage/storageAccounts/{account}/blobServices/default/containers/configs'), Azure's authorization engine evaluates permissions only against that exact resource path, effectively blocking any operations on sibling containers. This is critical in multi-tenant or CI/CD scenarios where a job must only interact with a specific data partition.
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.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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FAQ
Questions learners often ask
What does this AZ-104 question test?
Implement and Manage Storage — This question tests Implement and Manage Storage — 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 configs container scope — The Storage Blob Data Contributor role at the container scope grants the managed identity the necessary permissions to upload and overwrite blobs (including JSON files) within the 'configs' container, while explicitly preventing listing, deleting, or modifying other containers in the storage account. This role includes the 'Microsoft.Storage/storageAccounts/blobServices/containers/blobs/write' action, which allows overwriting existing blobs, but does not include any actions on the container itself (like listing or deleting containers) or on other containers. Scoping the role to the specific container ensures the principle of least privilege is strictly followed.
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.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
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
This AZ-104 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-104 exam.
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