The correct answer is that users can register but must use an external identity provider. This behavior is dictated by the Power Pages authentication settings: when the local login setting is explicitly set to false, the site disables username and password-based sign-in, while the external login setting being true forces all authentication through a third-party provider like Microsoft Entra ID or Facebook. Crucially, the registration enabled setting remains true, so new users can still create accounts, but only via that external provider. On the Microsoft Power Platform Fundamentals PL-900 exam, this scenario tests your understanding of how site settings control authentication flows—a common trap is assuming that disabling local login also disables registration, or that external login implies registration is optional. Remember the memory tip: “Local off, external on, registration still on—users must bring their own identity.”
PL-900 Demonstrate the capabilities of Power Pages Practice Question
This PL-900 practice question tests your understanding of demonstrate the capabilities of power pages. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Users can register but must use an external identity provider
Option A is correct because local login is disallowed and external login is required. Option B is wrong because registration is enabled. Option C is wrong because local login is not allowed. Option D is wrong because external login is required, but registration is enabled.
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.
✗
Users can register with a local account
Why it's wrong here
LocalLoginAllowed is false.
✗
Users cannot register at all
Why it's wrong here
Registration is enabled.
✗
Users must use Microsoft Entra ID to sign in
Why it's wrong here
External identity provider is required but not specified.
✓
Users can register but must use an external identity provider
Why this is correct
Registration is enabled; local login is disabled; external login is required.
Related concept
Read the scenario before looking for a memorised answer.
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-900 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.
Demonstrate the capabilities of Power Pages — This question tests Demonstrate the capabilities of Power Pages — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Users can register but must use an external identity provider — Option A is correct because local login is disallowed and external login is required. Option B is wrong because registration is enabled. Option C is wrong because local login is not allowed. Option D is wrong because external login is required, but registration is enabled.
What should I do if I get this PL-900 question wrong?
Identify which PL-900 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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