The correct answer is to configure serverless SQL pools to use Microsoft Entra ID authentication only, while dedicated SQL pools allow SQL authentication. This works because Azure Synapse Analytics treats serverless and dedicated SQL pools as separate compute engines with independent authentication settings; serverless pools natively support Entra ID as the sole identity provider when SQL authentication is disabled, whereas dedicated pools can retain SQL logins without conflict. On the DP-203 exam, this scenario tests your understanding of hybrid authentication models within a single workspace, often appearing as a trick where candidates mistakenly apply a uniform authentication method across all pools. A common trap is assuming serverless pools require SQL authentication for compatibility, but the key is that Entra ID roles can be granularly assigned to serverless endpoints. Remember the mnemonic: “Serverless needs Entra, Dedicated keeps SQL” to separate the two authentication paths clearly.
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.
You are responsible for securing an Azure Synapse Analytics workspace. The workspace contains dedicated SQL pools and serverless SQL pools. You need to ensure that only users with specific Microsoft Entra ID roles can query serverless SQL pools, while dedicated SQL pools use SQL authentication. What should you do?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Configure serverless SQL pools to use Microsoft Entra ID authentication only, and dedicated SQL pools to allow SQL authentication.
Option B is correct because serverless SQL pools in Azure Synapse Analytics natively support Microsoft Entra ID authentication, allowing you to restrict access to specific Entra ID roles by disabling SQL authentication for those pools. Dedicated SQL pools can independently be configured to allow SQL authentication, enabling coexistence of both authentication methods as required. This separation ensures that only users with the designated Entra ID roles can query serverless SQL pools, while dedicated SQL pools remain accessible via SQL logins.
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.
✗
Create SQL logins for serverless SQL pools and assign permissions to Microsoft Entra ID groups.
Why it's wrong here
Serverless SQL pools do not support SQL logins.
✓
Configure serverless SQL pools to use Microsoft Entra ID authentication only, and dedicated SQL pools to allow SQL authentication.
Why this is correct
Serverless SQL pools support only Entra ID; dedicated SQL pools can use both.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use a managed identity for serverless SQL pools and assign it to Microsoft Entra ID roles.
Why it's wrong here
Managed identities are for services, not for user authentication.
✗
Disable SQL authentication for all pools and enforce Microsoft Entra ID authentication only.
Why it's wrong here
Dedicated SQL pools may need SQL authentication for legacy applications.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may assume SQL logins can be created for serverless SQL pools (Option A) or that managed identities can be used to control user access (Option C), when in fact serverless pools only support Microsoft Entra ID authentication and managed identities are for service principals, not user permissions.
Detailed technical explanation
How to think about this question
Under the hood, serverless SQL pools authenticate via the Microsoft Entra ID token endpoint, using the OAuth 2.0 protocol to validate user identities against assigned Entra ID roles or groups. Dedicated SQL pools, on the other hand, maintain their own SQL authentication system with logins stored in the master database, allowing coexistence of both authentication methods within the same workspace. A real-world scenario is a data lake environment where analysts use Entra ID for ad-hoc queries on external data via serverless pools, while ETL jobs use SQL authentication for dedicated pools to ensure consistent performance.
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: Configure serverless SQL pools to use Microsoft Entra ID authentication only, and dedicated SQL pools to allow SQL authentication. — Option B is correct because serverless SQL pools in Azure Synapse Analytics natively support Microsoft Entra ID authentication, allowing you to restrict access to specific Entra ID roles by disabling SQL authentication for those pools. Dedicated SQL pools can independently be configured to allow SQL authentication, enabling coexistence of both authentication methods as required. This separation ensures that only users with the designated Entra ID roles can query serverless SQL pools, while dedicated SQL pools remain accessible via SQL logins.
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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