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.
A storage account for thumbnail metadata must allow an application to read only blobs under one container for two hours. The application should not receive the account key. What should be issued?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
A service SAS scoped to the container with read permission and expiry
A service SAS scoped to a container with read permission and an expiry of two hours is the correct approach because it provides delegated, time-limited access to specific blobs under that container without exposing the storage account key. The SAS token is generated using the account key but the application only receives the token, not the key itself, ensuring the key remains secure. This meets the requirement for read-only access to a single container for a limited duration.
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.
✗
A public access level on the container
Why it's wrong here
Public access exposes data to anonymous users.
✓
A service SAS scoped to the container with read permission and expiry
Why this is correct
A service SAS can grant limited, time-bound permissions without exposing account keys.
Related concept
Read the scenario before looking for a memorised answer.
✗
A management group assignment
Why it's wrong here
Management groups govern Azure resources but do not provide temporary blob read tokens.
✗
The storage account access key
Why it's wrong here
Account keys grant broad access and are not appropriately scoped.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse a service SAS with a public access level or account key, failing to recognize that a SAS provides granular, time-bound delegation without exposing the account key, while public access is permanent and account keys grant full control.
Detailed technical explanation
How to think about this question
A service SAS is generated by signing a token string with the storage account key using HMAC-SHA256; the token includes parameters such as 'spr' (permissions), 'st' (start time), 'se' (expiry), 'spr' (protocol), and 'sr' (resource type). The SAS can be scoped to a container by setting the signed resource ('sr') to 'c' (container), and permissions ('sp') to 'r' (read), allowing listing and reading blobs within that container. In a real-world scenario, a web app generating thumbnails might issue a SAS to a front-end client for direct upload or download, keeping the account key secure in a Key Vault.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-204 question in full detail.
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: A service SAS scoped to the container with read permission and expiry — A service SAS scoped to a container with read permission and an expiry of two hours is the correct approach because it provides delegated, time-limited access to specific blobs under that container without exposing the storage account key. The SAS token is generated using the account key but the application only receives the token, not the key itself, ensuring the key remains secure. This meets the requirement for read-only access to a single container for a limited duration.
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.
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Question Discussion
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