The answer is to set an Azure Active Directory admin for the Azure SQL Database server first. This step is mandatory because enforcing Azure AD-only authentication for Azure SQL Database requires a designated Azure AD admin to serve as the bridge between the database and Azure AD; without this admin, no Azure AD principals can authenticate, and you cannot remove SQL authentication logins. On the Microsoft Azure Database Administrator Associate DP-300 exam, this task tests your understanding of the dependency chain—many candidates mistakenly try to disable SQL authentication immediately, but the Azure AD admin must exist first to avoid locking yourself out. A common trap is assuming you can enforce Azure AD-only authentication directly from the database’s firewall settings or by altering a server property, but the admin designation is the prerequisite. Remember the mnemonic: “Admin first, then enforce”—you cannot remove the ladder until you have a secure foothold in Azure AD.
DP-300 Implement a secure environment Practice Question
This DP-300 practice question tests your understanding of implement a secure environment. 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. 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.
A company manages an Azure SQL Database that stores sensitive customer data. The security team mandates that all connections to the database use Azure Active Directory (Azure AD) authentication and that no SQL authentication logins exist. You are tasked with implementing this requirement. What should you do first?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "first"
Why it matters: Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Set an Azure Active Directory admin for the Azure SQL Database server.
Option C is correct because before you can enforce Azure AD-only authentication, you must first designate an Azure AD admin for the Azure SQL Database server. This admin is the only identity that can manage Azure AD users and permissions in the database, and once set, you can then remove or disable SQL authentication logins. Without an Azure AD admin, there is no way to authenticate or manage Azure AD principals within the database, making the transition impossible.
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.
✗
Set the server's 'Public network access' to 'Disabled'.
Why it's wrong here
This only restricts network access, not authentication method.
✗
Remove the server admin login from the master database.
Why it's wrong here
Cannot remove the server admin without first having an Azure AD admin.
✓
Set an Azure Active Directory admin for the Azure SQL Database server.
Why this is correct
An Azure AD admin must be set before disabling SQL authentication.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Deny the CONNECT permission to all SQL authentication logins.
Why it's wrong here
This can be done after setting Azure AD admin but is not the first step.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse disabling network access or removing permissions with actually changing the authentication model, but the first required step is always to establish an Azure AD admin to enable Azure AD authentication at the server level.
Detailed technical explanation
How to think about this question
Azure SQL Database uses a two-tier authentication model: server-level logins (SQL or Azure AD) and database-level users. The Azure AD admin is a special server-level principal that bypasses individual database user mappings and can create contained database users mapped to Azure AD identities. Under the hood, the Azure AD admin is stored in the server's metadata and is the only identity that can execute `CREATE USER [user] FROM EXTERNAL PROVIDER` to create Azure AD users. A common real-world scenario is when a company wants to use Azure AD Conditional Access policies; without an Azure AD admin, those policies cannot be applied at the database level.
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: Set an Azure Active Directory admin for the Azure SQL Database server. — Option C is correct because before you can enforce Azure AD-only authentication, you must first designate an Azure AD admin for the Azure SQL Database server. This admin is the only identity that can manage Azure AD users and permissions in the database, and once set, you can then remove or disable SQL authentication logins. Without an Azure AD admin, there is no way to authenticate or manage Azure AD principals within the database, making the transition impossible.
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.
Are there clue words in this question I should notice?
Yes — watch for: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. 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?
medium
A.Enable Azure AD conditional access policy to restrict sign-ins to the specific tenant.
B.Set the server firewall to allow only the tenant's IP range.
✓ C.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.
D.Configure a network security group (NSG) to block all traffic except from the tenant's IP range.
Why C: 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.
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Question Discussion
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