DP-203 Design and implement data storage Practice Question
This DP-203 practice question tests your understanding of design and implement data storage. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 THREE of the following are required to configure a managed private endpoint for Azure Data Factory when connecting to an Azure SQL Database that has a private endpoint?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
A private DNS zone for Azure SQL Database must be linked to the virtual network.
Option C is correct because when using a managed private endpoint for Azure Data Factory to connect to an Azure SQL Database that has a private endpoint, a private DNS zone (privatelink.database.windows.net) must be linked to the virtual network. This ensures that DNS resolution for the Azure SQL Database private endpoint resolves to the private IP address within the virtual network, enabling connectivity over the private link without relying on public endpoints.
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.
✗
The managed identity of Azure Data Factory must be granted access to the private endpoint.
Why it's wrong here
Not required; the private endpoint is approved by the resource owner.
✗
The private endpoint must be in the same subscription as the Azure Data Factory.
Why it's wrong here
Can be in different subscriptions.
✓
A private DNS zone for Azure SQL Database must be linked to the virtual network.
Why this is correct
Required for name resolution.
Related concept
Read the scenario before looking for a memorised answer.
✓
The Azure SQL Database firewall must have 'Allow Azure services and resources to access this server' enabled.
Why this is correct
Needed for connectivity from ADF when using private endpoint.
Related concept
Read the scenario before looking for a memorised answer.
✓
The private endpoint must be in the same region as the Azure Data Factory.
Why this is correct
Managed private endpoints must be in the same region as the factory.
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 granting the managed identity access to the private endpoint (which is unnecessary) with granting it access to the Azure SQL Database itself, or assume that the private endpoint must be in the same subscription or region as the Data Factory, when in fact only the virtual network region matters and cross-subscription private endpoints are supported with proper approvals.
Detailed technical explanation
How to think about this question
Under the hood, a managed private endpoint in Azure Data Factory creates a private link connection that uses a network interface with a private IP from the managed virtual network. The private DNS zone (privatelink.database.windows.net) must be linked to the virtual network to enable automatic DNS resolution; without this, the Azure SQL Database FQDN would resolve to a public IP, breaking the private connection. In a real-world scenario, if the private DNS zone is not linked, clients in the virtual network would still attempt to reach the database over the internet, defeating the purpose of the private endpoint.
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 company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this DP-203 question in full detail.
Design and implement data storage — This question tests Design and implement data storage — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: A private DNS zone for Azure SQL Database must be linked to the virtual network. — Option C is correct because when using a managed private endpoint for Azure Data Factory to connect to an Azure SQL Database that has a private endpoint, a private DNS zone (privatelink.database.windows.net) must be linked to the virtual network. This ensures that DNS resolution for the Azure SQL Database private endpoint resolves to the private IP address within the virtual network, enabling connectivity over the private link without relying on public endpoints.
What should I do if I get this DP-203 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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