The answer is to enable service principal access in the Power BI admin portal under 'Developer settings' and then assign the service principal to the workspace with contributor or higher permissions. This is required because the XMLA endpoint in Power BI Premium uses Azure Active Directory authentication, and service principals—non-user identities created through app registration—must be explicitly allowed to bypass interactive login for automated dataset deployments. On the PL-300 exam, this tests your understanding of capacity-level governance versus workspace-level roles; a common trap is thinking reader permissions suffice, but service principals need at least contributor rights to deploy metadata via the XMLA endpoint. Remember the mnemonic "CAP" for this scenario: Capacity settings first, then App registration, then Permissions on the workspace—never skip the admin toggle.
PL-300 Manage and secure Power BI Practice Question
This PL-300 practice question tests your understanding of manage and secure power bi. 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.
A company has Power BI Premium capacity. They want to allow developers to deploy datasets using the XMLA endpoint with a service principal. What must the admin configure?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Enable service principal access in the Power BI admin portal under 'Developer settings'.
Option C is correct because service principals need to be enabled in the capacity settings and assigned to the workspace. Option A is wrong because service principals need specific permissions, not just reader. Option B is wrong because the gateway is not required for cloud sources. Option D is wrong because app registration is needed but enabling in capacity is the key step.
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 service principal access in the Power BI admin portal under 'Developer settings'.
Why this is correct
Service principal access must be explicitly enabled for the tenant.
Related concept
Read the scenario before looking for a memorised answer.
Add the service principal as a member of the workspace.
Why it's wrong here
Service principal needs admin or member role to use XMLA endpoints for write.
✗
Create an app registration in Microsoft Entra ID.
Why it's wrong here
App registration is needed but the key admin step is enabling access.
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: Enable service principal access in the Power BI admin portal under 'Developer settings'. — Option C is correct because service principals need to be enabled in the capacity settings and assigned to the workspace. Option A is wrong because service principals need specific permissions, not just reader. Option B is wrong because the gateway is not required for cloud sources. Option D is wrong because app registration is needed but enabling in capacity is the key step.
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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