Fortinet NSE5_FNC_AD_7.6 Dumps Questions Answers

The correct answer is C . The exhibit shows a guest template with Login Availability set to Specify Time , allowing login only Monday through Friday from 6:00 AM to 7:00 PM . The study guide explains that the Account Duration and Login Availability fields define when the account is deleted from the database or what days and times the account is enabled. Therefore, outside the allowed login window, the guest cannot authenticate successfully using that guest account.

To stop network access outside those permitted times, FortiNAC-F must isolate hosts that are in the Not Authenticated state. The guide maps the Authentication captive network to hosts in the Not Authenticated state, and the isolation logic table shows that hosts in the Not Authenticated state are moved to the Authentication network when the point of connection is in the Forced Authentication group.

Option A is wrong because At-risk hosts are isolated to remediation/quarantine due to compliance or security posture problems, not because a guest login is outside allowed hours. Option B is wrong because Disabled hosts are intentionally disabled and sent to the dead-end network; the account here is time-restricted, not necessarily disabled. Option D is wrong because Rogue applies to unregistered or unclassified devices, while this scenario is about a known guest account that is not allowed to authenticate outside its login schedule.

The correct answer is C . In a link-trap-based wired deployment, the switch sends a linkUp or linkDown SNMP trap to FortiNAC-F, but that trap does not contain the endpoint MAC address. After receiving the link trap, FortiNAC-F must contact the switch and perform a Layer 2 poll to read the forwarding table and determine which MAC address was added or removed on the port. The FortiNAC-F study guide states that link traps trigger FortiNAC-F to perform a Layer 2 poll to update its awareness of devices connected to the edge device, and the wired link-trap workflow specifically shows FortiNAC-F performing a Layer 2 poll before locating the host record and provisioning access.

The symptoms in the exhibit are classic stale Layer 2 visibility: FortiNAC-F still shows a rogue host on a port where no host is connected, while also failing to show hosts on ports where endpoints are actually connected. That means FortiNAC-F is not successfully refreshing the switch MAC table information. Since link traps depend on FortiNAC-F being able to poll the switch after the trap, a contact failure with the modeled switch is the most likely cause.

Option A is wrong because logical network settings affect access enforcement, not whether FortiNAC-F can see current MAC-to-port mappings. Option B is wrong because the FortiNAC-F agent is not required for basic switch-port visibility; Layer 2 visibility comes from switch polling, MAC notification traps, or RADIUS. Option D is tempting, but the broader failure shown here is not merely a policy or endpoint-side issue—it is that FortiNAC-F cannot obtain current Layer 2 data from the switch. In practice, you would still verify SNMP/CLI credentials while troubleshooting, but the best answer to the symptom pattern is that FortiNAC-F cannot contact/query the switch successfully.

In FortiNAC-F, theLayer 3 Network typeis specifically designed for deployments where the isolation networks—such as Registration, Remediation, and Dead End—are separated from the FortiNAC appliance ' s service interface (port2) by one or more routers. This architecture is common in large, distributed enterprise environments where endpoints in different physical locations or branches must be isolated into subnets that are local to their respective network equipment.

The reason the Configuration Wizard allows for more than one DHCP scope for a single isolation network type (state) is thatthere can be more than one isolation network of each typeacross the infrastructure. For instance, if an organization has three different sites, each site might require its own unique Layer 3 registration subnet to ensure efficient routing and to accommodate local IP address management. By allowing multiple scopes for the " Registration " state, FortiNAC can provide the appropriate IP address, gateway, and DNS settings to a rogue host regardless of which site ' s registration VLAN it is placed into.

When an endpoint is isolated, the network infrastructure (via DHCP Relay/IP Helper) directs the DHCP request to the FortiNAC service interface. FortiNAC then identifies which scope to use based on the incoming request ' s gateway information. This flexibility ensures that the system is not limited to a single flat subnet for each isolation state, supporting a scalable, multi-routed network topology.

" Multiple scopes are allowed for each isolation state (Registration, Remediation, Dead End, VPN, Authentication, Isolation, and Access Point Management). Within these scopes, multiple ranges in the lease pool are also permitted... This configWizard option is used when Isolation Networks are separated from the FortiNAC Appliance ' s port2 interface by a router. " —FortiNAC-F Configuration Wizard Reference Manual: Layer 3 Network Section.