Which statement about Cisco Firepower user agents is true?
A. User agents with the correct password can connect to the Firepower Management Center without additional configuration of the server
B. They cana be installed on Windows computers only
C. The user agent connection to the Firepower Management Center can be secured with IPsec
D. A single user agent can send data to up to 10 Firepower Management Center simultaneously
E. It supports multiple user-management options, including Active Directory and LDAP
B is correct
Prerequisites for Installing the User Agent
The Windows computer must meet the following prerequisites:
The computer is running Windows Vista, Windows 7, Windows 8, Windows Server 2008, or Windows Server 2012. For security reasons, we recommend you install the user agent on a domain computer and not on the Active Directory server computer.
E is not correct as it is an option in realm configuration and not an user agent. User agent is part of Active Directory connectivity from FMC
You can add multiple domain controllers as directories in a realm, but they must share the same basic realm information. The directories in a realm must be exclusively LDAP or exclusively Active Directory (AD) servers.
https://www.cisco.com/c/en/us/td/docs/security/firepower/623/configuration/guide/fpmc-config-guide-v623/create_and_manage_realms.html
can be B also:
https://www.cisco.com/c/en/us/td/docs/security/firesight/user-agent/23/config-guide/Firepower-User-Agent-Configuration-Guide-v2-3/ConfigAgent.html#pgfId-1765756