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.
Your company uses Azure SQL Database and requires that all connections use Azure Active Directory (now Microsoft Entra ID) authentication. You need to ensure that no SQL authentication logins exist in the database. 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
✓
Query sys.sql_logins to identify any SQL authentication logins and drop them.
Option D is correct because the only way to ensure no SQL authentication logins exist in an Azure SQL Database is to query the `sys.sql_logins` system catalog view to identify any SQL-authenticated logins and then drop them. Azure SQL Database does not support a server-level property like `DisableSqlAuthentication` to block SQL authentication; instead, you must explicitly remove SQL logins to enforce exclusive use of 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.
✗
Set the server property 'DisableSqlAuthentication' to true.
Why it's wrong here
This property does not exist; SQL authentication is controlled by Microsoft Entra admin settings.
✗
Set the database property 'contained database authentication' to 0.
Why it's wrong here
This setting affects contained database users, not SQL logins.
✗
Use the Azure portal to set the firewall rule to block SQL authentication.
Why it's wrong here
Firewall rules control IP addresses, not authentication methods.
✓
Query sys.sql_logins to identify any SQL authentication logins and drop them.
Why this is correct
This allows you to remove any existing SQL logins, enforcing Microsoft Entra-only authentication.
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 confuse the server-level property 'DisableSqlAuthentication' (which exists only in Azure SQL Managed Instance) with Azure SQL Database, or they mistakenly think firewall rules can filter by authentication type, when in fact firewall rules only control IP-based access.
Detailed technical explanation
How to think about this question
Under the hood, `sys.sql_logins` returns all server-level principals that use SQL authentication, including the `sa` account and any custom logins. Dropping these logins requires the `ALTER ANY LOGIN` permission, and after removal, only Microsoft Entra ID logins (e.g., `CREATE USER [user@domain.com] FROM EXTERNAL PROVIDER`) can authenticate. In a real-world scenario, you must also ensure that no contained database users with password authentication exist by querying `sys.database_principals` and `sys.sql_logins` 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: Query sys.sql_logins to identify any SQL authentication logins and drop them. — Option D is correct because the only way to ensure no SQL authentication logins exist in an Azure SQL Database is to query the `sys.sql_logins` system catalog view to identify any SQL-authenticated logins and then drop them. Azure SQL Database does not support a server-level property like `DisableSqlAuthentication` to block SQL authentication; instead, you must explicitly remove SQL logins to enforce exclusive use of Microsoft Entra ID authentication.
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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