How do security groups enhance Firebox policy management?

Security groups enhance Firebox policy management by allowing administrators to group users and devices together, enabling consistent application of policies across these groups. This approach streamlines the management of security settings and access controls by ensuring that all members of a group adhere to the same security protocols. By defining a set of rules and permissions for a group, administrators can efficiently apply changes or updates across multiple users or devices, rather than configuring policies on an individual basis. This not only simplifies management but also promotes a cohesive security posture within the organization.

The other options do not accurately represent the role of security groups in policy management. Randomizing user access levels does not facilitate control but could create confusion and inconsistency. Limiting access to the management interface relates more to access control rather than the management of policies themselves. Reducing the size of policy databases is not a core function of security groups; their purpose is more about organization and consistency in policy application rather than database size management.