Question 316 of 963

Implement a secure environment →easyMultiple ChoiceObjective-mapped

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.

You are a database administrator for a company that stores sensitive customer data in Azure SQL Database. The security team requires that all access to the database be authenticated using Microsoft Entra ID and that no SQL authentication logins exist. You need to verify that SQL authentication is disabled. What should you do?

A
Set the 'Deny public network access' property to 'Yes'
Why wrong: This restricts network access to private endpoints but does not disable SQL authentication.
B
Configure a server-level firewall rule to block all IP addresses
Why wrong: Firewall rules control IP-based network access, not authentication method.
C
In the Azure portal, navigate to the SQL server's 'Microsoft Entra ID' blade and enable 'Azure AD-only authentication'
Enabling this setting disables SQL authentication and enforces Microsoft Entra authentication for all connections.
D
Query sys.sql_logins to check for any SQL authenticated logins
Why wrong: This only lists existing SQL logins but does not enforce or verify that SQL authentication is disabled for future connections.

Full breakdown with real-world context →

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

✓

In the Azure portal, navigate to the SQL server's 'Microsoft Entra ID' blade and enable 'Azure AD-only authentication'

Option C is correct because enabling 'Azure AD-only authentication' in the SQL server's Microsoft Entra ID blade disables SQL authentication entirely, ensuring that only Microsoft Entra ID principals can authenticate. This directly meets the security requirement to eliminate SQL authentication logins, as it prevents any connection attempt using SQL login credentials, even if they exist in the system catalog.

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 'Deny public network access' property to 'Yes'
Why it's wrong here
This restricts network access to private endpoints but does not disable SQL authentication.
✗
Configure a server-level firewall rule to block all IP addresses
Why it's wrong here
Firewall rules control IP-based network access, not authentication method.
✓
In the Azure portal, navigate to the SQL server's 'Microsoft Entra ID' blade and enable 'Azure AD-only authentication'
Why this is correct
Enabling this setting disables SQL authentication and enforces Microsoft Entra authentication for all connections.
Related concept
Read the scenario before looking for a memorised answer.
✗
Query sys.sql_logins to check for any SQL authenticated logins
Why it's wrong here
This only lists existing SQL logins but does not enforce or verify that SQL authentication is disabled for future connections.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates often think querying sys.sql_logins (Option D) is sufficient to verify the requirement, but the question asks to disable SQL authentication, not just check for its existence, and only the Azure AD-only authentication setting enforces the block.

Detailed technical explanation

How to think about this question

When 'Azure AD-only authentication' is enabled, Azure SQL Database sets the server property 'is_azure_ad_only_authentication' to 1, which causes the engine to reject any login attempt that does not use a Microsoft Entra ID token, even if the SQL login exists in sys.sql_logins. This is enforced at the gateway layer before the connection reaches the database engine, effectively blocking SQL authentication at the protocol level. In a real-world scenario, this setting is critical for compliance frameworks like SOC 2 or PCI DSS that require centralized identity management and the elimination of local database credentials.

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.

What to study next

Got this wrong? Here's your next step.

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

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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: In the Azure portal, navigate to the SQL server's 'Microsoft Entra ID' blade and enable 'Azure AD-only authentication' — Option C is correct because enabling 'Azure AD-only authentication' in the SQL server's Microsoft Entra ID blade disables SQL authentication entirely, ensuring that only Microsoft Entra ID principals can authenticate. This directly meets the security requirement to eliminate SQL authentication logins, as it prevents any connection attempt using SQL login credentials, even if they exist in the system catalog.

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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