- A
Use a Shared Access Signature (SAS) token
Delegated, time-limited access.
- B
Use Azure Front Door to restrict access
Why wrong: Front Door is a CDN, not an access control mechanism.
- C
Assign RBAC roles like Storage Blob Data Contributor
Fine-grained access control.
- D
Embed storage account keys in client code
Why wrong: Exposes full access; not secure.
- E
Enable public blob access
Why wrong: Public access is insecure.
Question 727 of 997
AZ-204 Develop for Azure storage Practice Question
This AZ-204 practice question tests your understanding of develop for azure 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.
Which TWO of the following are valid approaches to secure access to Azure Blob Storage?
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
✓
Use a Shared Access Signature (SAS) token
A Shared Access Signature (SAS) token provides delegated, time-limited access to specific Azure Blob Storage resources without exposing the storage account key. It allows you to grant granular permissions (read, write, delete) and enforce constraints like IP restrictions and allowed protocols (HTTPS only). This is a secure, recommended approach for sharing access with clients or third parties.
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.
- ✓
Use a Shared Access Signature (SAS) token
Why this is correct
Delegated, time-limited access.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Use Azure Front Door to restrict access
Why it's wrong here
Front Door is a CDN, not an access control mechanism.
- ✓
Assign RBAC roles like Storage Blob Data Contributor
Why this is correct
Fine-grained access control.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Embed storage account keys in client code
Why it's wrong here
Exposes full access; not secure.
- ✗
Enable public blob access
Why it's wrong here
Public access is insecure.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse Azure Front Door's traffic routing and WAF capabilities with actual blob-level authentication, or they mistakenly believe embedding storage account keys is acceptable for client-side applications, ignoring the severe security implications.
Detailed technical explanation
How to think about this question
SAS tokens are generated using the HMAC-SHA256 algorithm with the storage account key, and they can be scoped to a single blob, container, or entire account with expiration times down to seconds. RBAC roles like Storage Blob Data Contributor use Azure AD authentication and support fine-grained access control at the storage account, container, or blob level, integrating with managed identities for secure, keyless access. A common real-world scenario is using a user-delegation SAS (secured with Azure AD credentials) for applications that need temporary access without storing keys.
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.
Quick reference
Azure Blob Storage Tier Comparison
| Tier | Storage Cost | Retrieval Cost | Latency | Use Case |
|---|---|---|---|---|
| Hot | Highest | Lowest | Immediate | Active data, frequent reads |
| Cool | Lower | Higher | Immediate | Data accessed < once / month |
| Cold | Lower still | Higher | Immediate | Data accessed < once / quarter |
| Archive | Lowest | Highest + rehydration delay | Hours | Long-term compliance retention |
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.
- →
Develop for Azure storage — study guide chapter
Learn the concepts, then practise the questions
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Develop for Azure storage practice questions
Targeted practice on this topic area only
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FAQ
Questions learners often ask
What does this AZ-204 question test?
Develop for Azure storage — This question tests Develop for Azure storage — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use a Shared Access Signature (SAS) token — A Shared Access Signature (SAS) token provides delegated, time-limited access to specific Azure Blob Storage resources without exposing the storage account key. It allows you to grant granular permissions (read, write, delete) and enforce constraints like IP restrictions and allowed protocols (HTTPS only). This is a secure, recommended approach for sharing access with clients or third parties.
What should I do if I get this AZ-204 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
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
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Last reviewed: Jun 24, 2026
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