What are two features of collector agent advanced mode on FortiGate?

The correct response identifies the capability of FortiGate in advanced mode to be configured as an LDAP client while allowing for the configuration of group filters. This functionality enables FortiGate to communicate with LDAP servers for authentication and user management effectively. By acting as an LDAP client, FortiGate can retrieve user details and apply specific policies based on user groups that can be defined through filters. This enhances the flexibility and ease of managing network security by allowing integration with existing directory services.

In advanced mode, the ability to configure group filters is especially significant because it allows administrators to create more granular security policies. By specifying which groups from the LDAP directory should be recognized by FortiGate, it tailors access and permissions to the network based on the organizational structure maintained within the LDAP environment.

The other options, while they describe features that may appear in different contexts or modes, do not specifically pertain to the advanced configuration capabilities of the collector agent within FortiGate. For instance, features regarding custom logging formats pertain more to logging configurations rather than LDAP functionalities, and nested or inherited groups refer to group management rather than the direct capabilities of the collector agent.