Which of the following is NOT an identity source used for Identity Awareness?

Remote Access VPN is a supported Identity Awareness identity source because authenticated VPN sessions provide a direct and reliable user-to-IP mapping.

Identity Awareness collects user-to-IP address mappings from dedicated identity sources such as AD Query, RADIUS Accounting, and Remote Access VPN. UserCheck is a distinct Check Point software blade that presents interactive policy notifications and justification prompts to end users, and it does not supply identity information to the Identity Awareness engine.

AD Query is a core Identity Awareness identity source that reads Windows Security Event logs from Active Directory domain controllers to map usernames to IP addresses in real time.

RADIUS Accounting is a supported identity source that allows Identity Awareness to receive user authentication events from RADIUS-enabled network access devices such as wireless controllers or VPN concentrators.