DP-300 Implement a secure environment Practice Question
This DP-300 practice question tests your understanding of implement a secure environment. 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.
Your company uses Azure SQL Database with Microsoft Entra ID authentication. You need to ensure that only users from a specific Microsoft Entra ID tenant can access the database. What should you configure?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create a server-level firewall rule with IP range '0.0.0.0' and then use Microsoft Entra ID authentication with a conditional access policy.
Option C is correct because to restrict access to a specific Microsoft Entra ID tenant, you must first set the server-level firewall to allow all Azure IPs (0.0.0.0) so that Azure SQL Database can accept connections from any Azure resource, and then enforce tenant-level restrictions using a conditional access policy. This combination ensures that only users from the specified tenant can authenticate, while the firewall rule handles network-level access from Azure services.
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.
✗
Enable Azure AD conditional access policy to restrict sign-ins to the specific tenant.
Why it's wrong here
Conditional access policies apply to the tenant level, not directly to the database.
✗
Set the server firewall to allow only the tenant's IP range.
Why it's wrong here
Firewall rules control network access, not tenant-based access.
✓
Create a server-level firewall rule with IP range '0.0.0.0' and then use Microsoft Entra ID authentication with a conditional access policy.
Why this is correct
This allows all IPs but relies on Entra ID to validate the tenant.
Related concept
Read the scenario before looking for a memorised answer.
✗
Configure a network security group (NSG) to block all traffic except from the tenant's IP range.
Why it's wrong here
NSGs are for VMs and virtual networks, not Azure SQL Database.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often think a conditional access policy alone can restrict tenant access, but it must be combined with the firewall rule '0.0.0.0' to allow Azure services, as the policy only controls authentication, not network connectivity.
Detailed technical explanation
How to think about this question
Under the hood, Azure SQL Database uses a two-layer access model: network-level firewall rules (IP or VNet) and identity-level authentication via Microsoft Entra ID. By setting the firewall to 0.0.0.0, you allow all Azure services to connect, but the conditional access policy then evaluates the tenant ID claim in the OAuth 2.0 token, blocking sign-ins from other tenants. This is critical in multi-tenant scenarios where you must prevent cross-tenant access while still allowing Azure services like Logic Apps or Power BI to connect.
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-300 question in full detail.
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 server-level firewall rule with IP range '0.0.0.0' and then use Microsoft Entra ID authentication with a conditional access policy. — Option C is correct because to restrict access to a specific Microsoft Entra ID tenant, you must first set the server-level firewall to allow all Azure IPs (0.0.0.0) so that Azure SQL Database can accept connections from any Azure resource, and then enforce tenant-level restrictions using a conditional access policy. This combination ensures that only users from the specified tenant can authenticate, while the firewall rule handles network-level access from Azure services.
What should I do if I get this DP-300 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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