SC-900 Describe the capabilities of Microsoft Entra Practice Question
This SC-900 practice question tests your understanding of describe the capabilities of microsoft entra. 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.
Which TWO of the following are supported identity types for Microsoft Entra External ID? (Select two.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Social identities (e.g., Google, Facebook)
Microsoft Entra External ID supports social identities (like Google and Facebook) as external identity providers, allowing users to sign in with their existing social accounts. This is a core feature of External ID, enabling B2B and B2C scenarios without requiring users to create new Microsoft accounts.
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.
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OAuth 2.0 token identities
Why it's wrong here
Tokens are used for authorization, not identity types.
✓
Social identities (e.g., Google, Facebook)
Why this is correct
External ID allows social identity providers.
Related concept
Read the scenario before looking for a memorised answer.
✗
X.509 certificate-based identities
Why it's wrong here
Certificates are used for authentication, not as a separate identity type in External ID.
✓
Enterprise identities from SAML/WS-Federation identity providers
Why this is correct
External ID supports federation with enterprise IdPs.
Related concept
Read the scenario before looking for a memorised answer.
✗
Biometric identities (fingerprint, face)
Why it's wrong here
Biometrics are authentication methods, not identity types.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse authentication methods (like biometrics or certificates) with identity provider types, or assume OAuth 2.0 tokens are an identity type rather than a protocol used to exchange identity information.
Detailed technical explanation
How to think about this question
Microsoft Entra External ID allows you to configure social identity providers (e.g., Google, Facebook, Microsoft account) and enterprise identity providers (e.g., SAML/WS-Fed IdPs like Okta or Ping) as external identity sources. Under the hood, External ID uses the OAuth 2.0 and OpenID Connect protocols to federate with these providers, mapping their tokens to Azure AD identities. A subtle behavior is that social identities are treated as 'guest' users by default, but you can customize claims mapping and user attributes via the Microsoft Entra admin center or Graph API.
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.
TExam Day Tips
→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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this SC-900 question in full detail.
Describe the capabilities of Microsoft Entra — This question tests Describe the capabilities of Microsoft Entra — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Social identities (e.g., Google, Facebook) — Microsoft Entra External ID supports social identities (like Google and Facebook) as external identity providers, allowing users to sign in with their existing social accounts. This is a core feature of External ID, enabling B2B and B2C scenarios without requiring users to create new Microsoft accounts.
What should I do if I get this SC-900 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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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