SC-900 Describe the capabilities of Microsoft Entra Practice Question
Your company wants to allow partners to use their own corporate credentials to access a specific SharePoint site. Which Microsoft Entra ID feature supports this?
⚠ Common exam trap
A common mix-up: candidates confuse B2B collaboration (for partner organizations with existing corporate identities) with B2C collaboration (for consumers using social or local accounts), leading them to select the wrong option when the question specifies 'partners' and 'corporate credentials'.
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
✓
B2B collaboration
Microsoft Entra ID B2B (business-to-business) collaboration allows you to invite external users from partner organizations to access your company's resources, such as SharePoint sites, using their own corporate credentials. This feature supports identity federation with the partner's Azure AD or other identity providers, enabling seamless single sign-on (SSO) without requiring the partner users to create new accounts in your tenant.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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App Registrations
Why it's wrong here
App Registrations define how an application integrates with Microsoft Entra ID for authentication and authorization, establishing its identity within the directory. While applications are necessary for users to access resources, app registrations themselves do not directly manage external user identities or facilitate partners using their own corporate credentials to sign in. They are about the application's identity, not the end-user's external identity.
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B2C collaboration
Why it's wrong here
Microsoft Entra B2C (Business-to-Consumer) is a separate identity service designed to manage customer identities for consumer-facing applications, allowing users to sign up and sign in using social accounts or local accounts. It is specifically built for high-scale, public-facing applications where the organization manages the consumer identities directly, rather than federating with partner organizations' identity providers for business-to-business access.
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Device Registration
Why it's wrong here
Device Registration in Microsoft Entra ID is a process where devices are registered with the directory, linking them to user identities for purposes of device-based conditional access and management. This enables organizations to enforce policies based on device compliance and state. However, device registration is entirely unrelated to managing external user identities or allowing partner employees to authenticate with their own corporate credentials.
- ✓
B2B collaboration
Why this is correct
Microsoft Entra B2B collaboration is the correct solution, enabling organizations to securely share applications and resources with external users from partner companies. It allows these invited guest users to sign in using their existing corporate credentials from their home directory (e.g., another Microsoft Entra tenant, a federated identity provider, or even social identities), eliminating the need for partners to create new accounts in the inviting tenant. This streamlines access while maintaining security and partner identity management.
Go deeper
Related to this question
Learn chapter
Identity Concepts
Key term
Single sign-on
Single sign-on (SSO) is an authentication method that allows a user to log in once and gain access to multiple applications or systems without re-entering credentials.
Key term
Identity
Identity is the unique set of attributes that defines a user, device, or service in a computer system, determining what they can access and do.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This SC-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 SC-900 exam.