What is oAuth?
A . A type of authentication used when integrating a Cloud applications with a Premises solution.
B . Allows a user to act on behalf of an application
C . Allows an application to act on behalf of a user
D . A type of authentication used when users sign into Cloud applications, such as Cisco Spark
Answer: C
Explanation:
Application-user authentication: OAuth 1.0a (user context). The user authentication method of authentication allows an authorized app to act on behalf of a user.
https://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/jabber/11_9/Unified-CM-OAuth-Whitepaper-v17-FINAL.pdf