PL-900 Demonstrate the capabilities of Power Apps Practice Question
An organization plans to build a Power App that will be used by external partners. The app must allow partners to log in with their own credentials (Microsoft Entra B2B). Which feature should be configured?
⚠ Common exam trap
The trap is confusing Microsoft Entra B2B with Azure AD B2C — candidates often assume any external user scenario maps to B2C, but B2B is specifically for partner/federated identities while B2C is for consumer/customer identities.
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
✓
Set up Microsoft Entra B2B guest user access
Microsoft Entra B2B (Business-to-Business) is Microsoft's feature for inviting external users as guest accounts into the organization's tenant, allowing them to authenticate with their own credentials while accessing internal resources. Configuring Microsoft Entra B2B guest user access enables external partners to sign in to Power Apps using their existing organizational identities. This matches the requirement exactly.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use SharePoint external sharing settings
Why it's wrong here
SharePoint external sharing governs site and file access for guests, not app authentication. It is tempting because partners often need shared content, but it cannot issue sign-in tokens; configuring Microsoft Entra ID B2B collaboration in the tenant is what lets partners authenticate with their own credentials.
- ✗
Enable anonymous access in Power Apps
Why it's wrong here
Anonymous access removes authentication entirely, so partners would never sign in with their own credentials. It is tempting for quick external access, but the requirement is federated identity; Microsoft Entra ID B2B collaboration must be configured so partner accounts are invited and authenticated.
- ✓
Set up Microsoft Entra B2B guest user access
Why this is correct
Configuring Microsoft Entra ID B2B guest access lets external partners authenticate with their own organisational credentials, satisfying the stem's requirement that partners log in using existing Microsoft Entra ID identities. Guest accounts are invited into the tenant, and Power Apps honours that external identity, avoiding separate local accounts or credential duplication.
- ✗
Configure Azure AD B2C for the app
Why it's wrong here
Azure AD B2C serves consumer identities through local or social accounts, not partner federation. The stem specifies partners using their own credentials via Microsoft Entra B2B, which requires configuring external collaboration and guest access in Microsoft Entra ID, not a separate B2C tenant.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Microsoft exam blueprint
This PL-900 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PL-900 exam.