The answer is to block authentication methods other than OAuth2 in the Power BI admin portal. This is correct because enforcing SSO for all data sources in Power BI tenant settings requires you to restrict the authentication options available to users, and OAuth2 is the protocol that enables Microsoft Entra ID-based Single Sign-On. By blocking all other methods, you force every data source connection—such as those to Azure SQL Database—to use SSO, ensuring consistent identity-based access. On the PL-300 exam, this question tests your understanding of tenant-level governance versus dataset-level configuration; a common trap is thinking you can enforce SSO globally via a security group or dataset settings, but those only enable SSO without blocking alternatives. Remember the mnemonic “Block the rest, OAuth is best” to recall that you must actively disable non-OAuth2 methods in the admin portal to truly enforce SSO.
PL-300 Manage and secure Power BI Practice Question
This PL-300 practice question tests your understanding of manage and secure power bi. 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.
You manage a Power BI environment where users create reports using data from Azure SQL Database. You need to enforce that all data sources use Single Sign-On (SSO) with Microsoft Entra ID. 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
✓
In the Power BI admin portal, block authentication methods other than OAuth2.
Option D is correct because you can block other authentication methods via tenant settings in the Power BI admin portal. Option A is incorrect because SSO is configured per data source, not globally in a security group. Option B is incorrect because the 'Allow data sources to use SSO' setting enables SSO but does not block other methods. Option C is incorrect because you cannot block authentication methods in the dataset itself.
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.
✓
In the Power BI admin portal, block authentication methods other than OAuth2.
Why this is correct
Blocking non-OAuth methods forces SSO.
Related concept
Read the scenario before looking for a memorised answer.
✗
Configure the dataset to use SSO in the Power BI service.
Why it's wrong here
You cannot block other methods at the dataset level.
✗
Enable the 'Allow data sources to use SSO' tenant setting.
Why it's wrong here
This setting allows SSO but does not block other methods.
✗
Create a security group for SSO-enabled data sources and assign it to the workspace.
Why it's wrong here
Security groups do not enforce SSO.
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 PL-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.
Manage and secure Power BI — This question tests Manage and secure Power BI — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: In the Power BI admin portal, block authentication methods other than OAuth2. — Option D is correct because you can block other authentication methods via tenant settings in the Power BI admin portal. Option A is incorrect because SSO is configured per data source, not globally in a security group. Option B is incorrect because the 'Allow data sources to use SSO' setting enables SSO but does not block other methods. Option C is incorrect because you cannot block authentication methods in the dataset itself.
What should I do if I get this PL-300 question wrong?
Identify which PL-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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Question Discussion
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