Which of the following services does the Identity Authentication Service provide? Note: There are 2 correct answers to this question.

Question

Options

• APolicy refinement
• BAuthentication
• CSingle Sign-On
• DCentral User Repository

• A
  6% (2)
• B
  83% (29)
• D
  11% (4)

Explanation

Identity Authentication Service (IAS) is purpose-built to handle Authentication (B) - verifying who a user is - and Single Sign-On (C) - allowing that verified identity to access multiple connected applications without re-logging in. These are its two core functions as a cloud identity provider.

Why the distractors are wrong:

• A (Policy refinement) belongs to authorization tools like SAP Access Control or role management systems, not IAS.
• D (Central User Repository) is the role of an LDAP directory or identity directory service (like SAP Identity Directory); IAS can connect to user stores but is not itself a central repository.

Memory tip: Think of IAS as the "gatekeeper + passport": it checks your credentials (Authentication) and stamps your passport once so you can walk through multiple doors (Single Sign-On). Anything beyond that - storing users or refining policies - is someone else's job.

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