Which authentication method allows a user to log in to an SSO-enabled Cisco Unified Communications application by utilizing a Microsoft Windows login, thereby not requiring any credentials to be entered? 

Answer options:

A. Smart Card
B. OAuth
C. form-based
D. Kerberos

B

Reference: https://developer.cisco.com/docs/cisco-unified-communications-single-sign-on-tutorial/#!cisco-unified-communications-single-sign-on-tutorial/learning- more-about-sso