Certified Information Systems Security Professional (CISSP) — Question 281

Which of the following services can be deployed via a cloud service or on-premises to integrate with Identity as a Service (IDaaS) as the authoritative source of user identities?

Answer options

• A. Multi-factor authentication (MFA)
• B. Directory
• C. User database
• D. Single sign-on (SSO)

Correct answer: B

Explanation

The correct answer is B, Directory, as it serves as the authoritative source for user identities, allowing integration with IDaaS. Multi-factor authentication (A), user database (C), and single sign-on (D) are important components but do not serve as the primary identity source themselves.