The answer is a SAS token with an IP ACL. This mechanism is correct because it combines two distinct security layers: the SAS token provides authenticated, time-limited access to Azure Storage, while the IP ACL—specified via the signed IP (sip) parameter in the SAS token—restricts that access to requests originating from a specific client IP address or range. On the Microsoft Azure Developer Associate AZ-204 exam, this scenario tests your understanding of how to enforce network-level restrictions alongside shared access signature authentication, often appearing as a distractor against simpler options like a stored access policy or a firewall rule alone. A common trap is assuming an Azure Storage firewall alone satisfies the requirement, but the question explicitly demands both a valid SAS token and IP-based restriction, which only the SAS token’s sip parameter achieves. Memory tip: think “SIP for IP”—the signed IP parameter in the SAS token is your direct control for locking down storage to a specific client address.
AZ-204 Implement Azure security Practice Question
This AZ-204 practice question tests your understanding of implement azure security. 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 company stores sensitive data in an Azure Storage account. They need to restrict access based on the client's IP address and require that clients use a valid SAS token. Which mechanism should they use?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
SAS token with IP ACL.
A SAS token with an IP ACL (access control list) allows you to restrict access to a specific client IP address or range of IP addresses while also requiring a valid SAS token for authentication. This meets both requirements: IP-based restriction and SAS token validation. The IP ACL is specified as part of the SAS token's signed IP (sip) parameter, which enforces that requests must originate from the allowed IP range.
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.
✗
Microsoft Entra ID authentication.
Why it's wrong here
Incorrect. Microsoft Entra ID authentication does not natively support IP-based restrictions within the token.
✗
Shared Key.
Why it's wrong here
Incorrect. Shared Key does not allow IP restriction and exposes the account key.
✓
SAS token with IP ACL.
Why this is correct
Correct. A SAS token can specify an allowed IP address range.
Related concept
Read the scenario before looking for a memorised answer.
✗
Firewall and virtual networks.
Why it's wrong here
Incorrect. This is a network-level control, not per-request, and doesn't require SAS.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse network-level IP restrictions (firewall/VNet) with SAS-level IP restrictions, not realizing that only a SAS token with an IP ACL can enforce both a valid token and a specific client IP address simultaneously.
Detailed technical explanation
How to think about this question
When you create a SAS token with the signed IP (sip) parameter, the Azure Storage service validates both the SAS signature and the originating IP address of the request before granting access. This is enforced at the storage service level, not at the network layer, meaning the IP restriction is cryptographically bound to the SAS token itself. In a real-world scenario, this is useful for granting temporary access to a specific contractor's office IP while ensuring the token cannot be reused from an unauthorized location.
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.
Implement Azure security — This question tests Implement Azure security — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: SAS token with IP ACL. — A SAS token with an IP ACL (access control list) allows you to restrict access to a specific client IP address or range of IP addresses while also requiring a valid SAS token for authentication. This meets both requirements: IP-based restriction and SAS token validation. The IP ACL is specified as part of the SAS token's signed IP (sip) parameter, which enforces that requests must originate from the allowed IP range.
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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