- A
Use private endpoints for the storage account
Private endpoints ensure that all traffic to the storage account remains within the Microsoft backbone network, effectively preventing access from unauthorized external IPs.
- B
Enable Azure Firewall on the storage account
Why wrong: Azure Firewall is a managed network security service, but it is not directly enabled on a storage account. The storage account has its own firewall settings.
- C
Use shared access signatures (SAS) with limited permissions
Why wrong: SAS tokens grant specific permissions but do not prevent exfiltration; they control who can access but not from where.
- D
Configure storage firewall to allow only specific virtual networks
Configuring the storage firewall to allow only specific virtual networks restricts access to traffic originating from those VNets, blocking external IPs.
- E
Enable geo-redundant storage (GRS)
Why wrong: Geo-redundant storage replicates data to another region for durability, not for preventing exfiltration.
DP-203 Private endpoint Practice Question
This DP-203 practice question tests your understanding of secure, monitor, and optimize data storage and data processing. 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. A key principle to apply: private endpoint. 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 have an Azure Data Lake Storage Gen2 account that stores sensitive customer data. You need to prevent data exfiltration to unauthorized external IP addresses. Which TWO actions should you take?
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 private endpoints for the storage account
Network security controls: enabling the storage firewall to allow only specific virtual networks (Option D) restricts access to traffic originating from those VNets, blocking external IPs. Using private endpoints (Option A) ensures that all traffic to the storage account stays within the Microsoft backbone network, preventing exposure to the public internet. Option B is incorrect because Azure Firewall is a separate service, not a storage account setting. Option C (SAS) provides fine-grained access control but does not prevent exfiltration from external IPs. Option E (GRS) is for data durability, not security.
Key principle: Private endpoint
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 private endpoints for the storage account
Why this is correct
Private endpoints ensure that all traffic to the storage account remains within the Microsoft backbone network, effectively preventing access from unauthorized external IPs.
Related concept
Private endpoint
- ✗
Enable Azure Firewall on the storage account
Why it's wrong here
Azure Firewall is a managed network security service, but it is not directly enabled on a storage account. The storage account has its own firewall settings.
- ✗
Use shared access signatures (SAS) with limited permissions
Why it's wrong here
SAS tokens grant specific permissions but do not prevent exfiltration; they control who can access but not from where.
- ✓
Configure storage firewall to allow only specific virtual networks
- ✗
Enable geo-redundant storage (GRS)
Why it's wrong here
Geo-redundant storage replicates data to another region for durability, not for preventing exfiltration.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Candidates often confuse Azure Firewall (a network security service) with storage firewall settings. Also, they might think that restricting SAS tokens alone prevents exfiltration, but SAS does not block external IPs.
Detailed technical explanation
How to think about this question
Treat this as a scenario question. Identify the problem, the constraint, and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Private endpoint
- Storage firewall
- Data exfiltration prevention
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
Private endpoint
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.
Review private endpoint, then practise related DP-203 questions on the same topic to reinforce the concept.
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FAQ
Questions learners often ask
What does this DP-203 question test?
Secure, monitor, and optimize data storage and data processing — This question tests Secure, monitor, and optimize data storage and data processing — Private endpoint.
What is the correct answer to this question?
The correct answer is: Use private endpoints for the storage account — Network security controls: enabling the storage firewall to allow only specific virtual networks (Option D) restricts access to traffic originating from those VNets, blocking external IPs. Using private endpoints (Option A) ensures that all traffic to the storage account stays within the Microsoft backbone network, preventing exposure to the public internet. Option B is incorrect because Azure Firewall is a separate service, not a storage account setting. Option C (SAS) provides fine-grained access control but does not prevent exfiltration from external IPs. Option E (GRS) is for data durability, not security.
What should I do if I get this DP-203 question wrong?
Review private endpoint, then practise related DP-203 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
Private endpoint
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Last reviewed: Jun 21, 2026
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