- A
Use managed identities for each Azure resource and assign permissions to the database.
Why wrong: Managed identities are tied to Azure resources; not all applications may be Azure-hosted.
- B
Create a single Microsoft Entra ID service principal for all applications and assign different database roles.
Why wrong: A single service principal cannot differentiate permissions per application.
- C
Create SQL logins and users for each application with strong passwords, and configure password rotation policies.
Why wrong: SQL authentication does not use Microsoft Entra ID.
- D
Create a Microsoft Entra ID service principal for each application, store the client secret in Azure Key Vault, and create a contained database user mapped to each service principal.
This provides per-application identity, supports credential rotation, and uses Entra ID authentication.
DP-300 Implement a secure environment Practice Question
This DP-300 practice question tests your understanding of implement a secure environment. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.
Your company has an Azure SQL Database that is accessed by multiple applications. You need to implement a security solution that meets the following requirements: - Each application must have its own database user with specific permissions. - All authentication must use Microsoft Entra ID. - You need to be able to rotate credentials for each application without impacting other applications. - The solution must support automatic credential rotation for service principals.
What should you do?
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
Create a Microsoft Entra ID service principal for each application, store the client secret in Azure Key Vault, and create a contained database user mapped to each service principal.
Option D is correct because it creates a separate Microsoft Entra ID service principal for each application, stores the client secret in Azure Key Vault for automatic rotation, and creates a contained database user mapped to each service principal. This meets all requirements: per-application users, Microsoft Entra ID authentication, independent credential rotation, and support for automatic rotation via Key Vault. Option A is incorrect because managed identities are tied to specific Azure resources (e.g., VMs, App Services) and cannot be used for all applications (e.g., on-premises). Additionally, they do not provide a separate credential that can be rotated independently for each application. Option B is incorrect because a single service principal would share the same identity across all applications, preventing individual permissions and making credential rotation affect all applications. Option C is incorrect because SQL logins do not use Microsoft Entra ID authentication.
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.
- ✗
Use managed identities for each Azure resource and assign permissions to the database.
Why it's wrong here
Managed identities are tied to Azure resources; not all applications may be Azure-hosted.
- ✗
Create a single Microsoft Entra ID service principal for all applications and assign different database roles.
Why it's wrong here
A single service principal cannot differentiate permissions per application.
- ✗
Create SQL logins and users for each application with strong passwords, and configure password rotation policies.
Why it's wrong here
SQL authentication does not use Microsoft Entra ID.
- ✓
Create a Microsoft Entra ID service principal for each application, store the client secret in Azure Key Vault, and create a contained database user mapped to each service principal.
Why this is correct
This provides per-application identity, supports credential rotation, and uses Entra ID authentication.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- 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.
What to study next
Got this wrong? Here's your next step.
Identify which DP-300 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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Implement a secure environment — study guide chapter
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FAQ
Questions learners often ask
What does this DP-300 question test?
Implement a secure environment — This question tests Implement a secure environment — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Create a Microsoft Entra ID service principal for each application, store the client secret in Azure Key Vault, and create a contained database user mapped to each service principal. — Option D is correct because it creates a separate Microsoft Entra ID service principal for each application, stores the client secret in Azure Key Vault for automatic rotation, and creates a contained database user mapped to each service principal. This meets all requirements: per-application users, Microsoft Entra ID authentication, independent credential rotation, and support for automatic rotation via Key Vault. Option A is incorrect because managed identities are tied to specific Azure resources (e.g., VMs, App Services) and cannot be used for all applications (e.g., on-premises). Additionally, they do not provide a separate credential that can be rotated independently for each application. Option B is incorrect because a single service principal would share the same identity across all applications, preventing individual permissions and making credential rotation affect all applications. Option C is incorrect because SQL logins do not use Microsoft Entra ID authentication.
What should I do if I get this DP-300 question wrong?
Identify which DP-300 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 21, 2026
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