Exhibit.

In FortiNAC, to isolate rogue hosts, you should enable the:

C. Forced Remediation: This port group membership is used to isolate hosts that have been determined to be non-compliant or potentially harmful. It enforces a remediation process on the devices in this group, often by placing them in a separate VLAN or network segment where they have limited or no access to the rest of the network until they are remediated.

The other options are not specifically designed for isolating rogue hosts:

A. Forced Authentication: This is used to require devices to authenticate before gaining network access.

B. Forced Registration: This group is used to ensure that all devices are registered before they are allowed on the network.

D. Reset Forced Registration: This is used to reset the registration status of devices, not to isolate them.