Which service is used to provide authorization between the Identity Provider (IdP) and application?

Question

Options

• ASAML
• BOAuthv2
• CActive Directory Federation Services (ADFS)
• DIdentity Service (IdS)

• A
  5% (1)
• B
  9% (2)
• C
  86% (19)

Explanation

ADFS is a Microsoft service that acts as a federation broker, sitting between the Identity Provider (Active Directory) and relying-party applications to handle the authorization handshake - issuing claims-based tokens that applications trust. It enables SSO by establishing a trust relationship between the IdP and the application, making it the correct answer for a service that provides this bridge.

Why the others are wrong:

• SAML (A) is an XML-based protocol/standard for exchanging authentication and authorization data - it's what ADFS uses, not a service itself.
• OAuthv2 (B) is an authorization framework, not a service; it defines how tokens are granted but doesn't itself sit between IdP and application.
• Identity Service (IdS) (D) is not a recognized standard service in the identity federation space - it's a plausible-sounding distractor.

Memory tip: Watch for the word service in the question. SAML and OAuth are protocols/frameworks; ADFS is the actual service deployed to federate identity between an IdP and applications.

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