This SC-900 practice question tests your understanding of describe the capabilities of microsoft entra. 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.
Your company uses Microsoft Entra ID to manage user identities. You need to ensure that users can sign in using their existing social media accounts. Which Microsoft Entra feature should you configure?
Microsoft Entra External ID
External ID allows adding social identity providers like Facebook and Google.
Microsoft Entra B2B collaboration
Why wrong: B2B is for external business partners, not social identity providers.
Conditional Access policies
Why wrong: Conditional Access controls access based on conditions, not identity sources.
Privileged Identity Management
Why wrong: PIM manages privileged roles, not external identities.
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
Microsoft Entra External ID (formerly Azure AD B2C) is the correct feature because it is specifically designed to enable external identities, including social identity providers like Google, Facebook, and Microsoft accounts, for customer-facing applications. It supports standards such as OAuth 2.0 and OpenID Connect to allow users to sign in with their existing social media accounts without needing a separate Microsoft Entra ID account.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Microsoft Entra External ID
Why this is correct
External ID allows adding social identity providers like Facebook and Google.
Related concept
Read the scenario before looking for a memorised answer.
Microsoft Entra B2B collaboration
Why it's wrong here
B2B is for external business partners, not social identity providers.
Conditional Access policies
Why it's wrong here
Conditional Access controls access based on conditions, not identity sources.
Privileged Identity Management
Why it's wrong here
PIM manages privileged roles, not external identities.
Common exam traps
The trap here is that candidates often confuse Microsoft Entra B2B collaboration (for business partners) with Microsoft Entra External ID (for customers/consumers), mistakenly thinking B2B can also handle social identity providers, but B2B only supports organizational accounts (e.g., work/school) and not social logins.
Detailed technical explanation
Under the hood, Microsoft Entra External ID (B2C) uses a policy-based framework called 'user flows' to define sign-up and sign-in experiences, and it supports custom policies for advanced scenarios like federating with SAML or OIDC identity providers. A subtle behavior is that social identity providers are added as 'identity providers' in the B2C tenant, and the token issued after authentication contains claims from the social provider (e.g., email from Google) that can be mapped to your application's schema. In a real-world scenario, a retail company might configure Facebook and Google sign-in for its customer portal, allowing users to authenticate without creating a separate username/password.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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
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FAQ
Describe the capabilities of Microsoft Entra — This question tests Describe the capabilities of Microsoft Entra — Read the scenario before looking for a memorised answer..
The correct answer is: Microsoft Entra External ID — Microsoft Entra External ID (formerly Azure AD B2C) is the correct feature because it is specifically designed to enable external identities, including social identity providers like Google, Facebook, and Microsoft accounts, for customer-facing applications. It supports standards such as OAuth 2.0 and OpenID Connect to allow users to sign in with their existing social media accounts without needing a separate Microsoft Entra ID account.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
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.
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