This MS-900 practice question tests your understanding of describe security, compliance, privacy, and trust in microsoft 365. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. A key principle to apply: microsoft Entra External ID manages external user identities for collaboration.. 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.
While preparing a Microsoft 365 adoption plan, a consultant is asked to give external partners controlled access to Teams and SharePoint resources. Microsoft security, identity, or compliance capability should it use?
Microsoft Entra External ID / B2B collaboration
External collaboration allows controlled guest or external identity access.
Microsoft Stream
Why wrong: Stream hosts video content and does not meet this requirement.
Microsoft Forms
Why wrong: Forms creates surveys and quizzes, not this security or compliance capability.
Microsoft Planner
Why wrong: Planner manages tasks and does not provide this security or compliance control.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Microsoft Entra External ID / B2B collaboration
Microsoft Entra External ID (formerly Azure AD B2B collaboration) is the correct capability because it enables organizations to securely share Teams and SharePoint resources with external partners by inviting them as guest users. This feature uses identity federation to allow partners to authenticate with their own credentials, while enforcing conditional access policies and compliance controls. It directly addresses the requirement for controlled, compliant external access without exposing internal directories or requiring additional licenses for partners.
Key principle: Microsoft Entra External ID manages external user identities for collaboration.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Microsoft Entra External ID / B2B collaboration
Why this is correct
External collaboration allows controlled guest or external identity access.
Related concept
Microsoft Entra External ID manages external user identities for collaboration.
Microsoft Stream
Why it's wrong here
Stream hosts video content and does not meet this requirement.
Microsoft Forms
Why it's wrong here
Forms creates surveys and quizzes, not this security or compliance capability.
Microsoft Planner
Why it's wrong here
Planner manages tasks and does not provide this security or compliance control.
Common exam traps
The trap here is that candidates may confuse collaboration tools (Stream, Forms, Planner) with identity and access management capabilities, failing to recognize that only Microsoft Entra External ID (B2B collaboration) provides the necessary security and compliance controls for external partner access.
Detailed technical explanation
Microsoft Entra External ID leverages SAML 2.0, OAuth 2.0, and OpenID Connect protocols to federate with external identity providers, allowing partners to use their own corporate credentials (e.g., Google, Facebook, or any SAML/WS-Fed IdP). Under the hood, guest users are represented as B2B collaboration user objects in the tenant, with a UserType of 'Guest', and can be assigned granular permissions via Azure AD conditional access policies (e.g., requiring MFA or compliant devices). A real-world scenario is a consulting firm granting external auditors read-only access to specific SharePoint document libraries while blocking download capabilities, all managed through Entra ID guest access settings.
Key takeaway
Microsoft Entra External ID manages external user identities for collaboration.
Real-world example
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
Review microsoft Entra External ID manages external user identities for collaboration., then practise related MS-900 questions on the same topic to reinforce the concept.
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FAQ
Describe security, compliance, privacy, and trust in Microsoft 365 — This question tests Describe security, compliance, privacy, and trust in Microsoft 365 — Microsoft Entra External ID manages external user identities for collaboration..
The correct answer is: Microsoft Entra External ID / B2B collaboration — Microsoft Entra External ID (formerly Azure AD B2B collaboration) is the correct capability because it enables organizations to securely share Teams and SharePoint resources with external partners by inviting them as guest users. This feature uses identity federation to allow partners to authenticate with their own credentials, while enforcing conditional access policies and compliance controls. It directly addresses the requirement for controlled, compliant external access without exposing internal directories or requiring additional licenses for partners.
Review microsoft Entra External ID manages external user identities for collaboration., then practise related MS-900 questions on the same topic to reinforce the concept.
Microsoft Entra External ID manages external user identities for collaboration.
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Last reviewed: Jun 11, 2026
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