- A
Storage account access key
Why wrong: Access keys are not delegated and expose full access.
- B
Account shared access signature (SAS)
Why wrong: Account SAS uses the account key.
- C
Service shared access signature (SAS)
Why wrong: Service SAS uses the account key.
- D
User delegation shared access signature (SAS)
User delegation SAS uses Entra ID, no key exposure.
Question 800 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.
You need to grant a user the ability to read and write blobs in a specific container for 24 hours. The solution must use delegated access without exposing the storage account key. What should you use?
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
✓
User delegation shared access signature (SAS)
A user delegation SAS is secured with Azure AD credentials and is the only SAS type that uses delegated authorization without exposing the storage account key. It allows you to grant granular, time-limited access (e.g., 24 hours) to a specific container for read and write operations, meeting the requirement exactly.
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 account access key
Why it's wrong here
Access keys are not delegated and expose full access.
- ✗
Account shared access signature (SAS)
Why it's wrong here
Account SAS uses the account key.
- ✗
Service shared access signature (SAS)
Why it's wrong here
Service SAS uses the account key.
- ✓
User delegation shared access signature (SAS)
Why this is correct
User delegation SAS uses Entra ID, no key exposure.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse a service SAS (which is scoped to a single service like Blob) with a user delegation SAS, but the key differentiator is that a user delegation SAS uses Azure AD for signing, not the account key.
Detailed technical explanation
How to think about this question
A user delegation SAS is generated using Azure AD credentials via the `UserDelegationKey` obtained from the `Get User Delegation Key` REST API operation. This key is valid for up to 7 days and is used to sign the SAS token, ensuring the permissions are tied to the requesting user's identity. In practice, this is ideal for scenarios like granting temporary access to a contractor for a specific blob container without sharing the account key or creating a full RBAC role assignment.
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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Develop for Azure storage — study guide chapter
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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: User delegation shared access signature (SAS) — A user delegation SAS is secured with Azure AD credentials and is the only SAS type that uses delegated authorization without exposing the storage account key. It allows you to grant granular, time-limited access (e.g., 24 hours) to a specific container for read and write operations, meeting the requirement exactly.
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
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Last reviewed: Jun 24, 2026
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