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NEW QUESTION # 21
Refer to the exhibits.
An administrator is troubleshooting visibility issues on a modeled switch The switch is configured to use link traps and to provision hosts based on network access policies. The administrator is seeing hosts on ports with no hosts connected and not seeing hosts on ports where hosts are known to be connected.
What is the most likely cause?
Answer: D
Explanation:
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.
NEW QUESTION # 22
When FortiNAC-F is managing VPN clients connecting through FortiGate, why must the clients run a FortiNAC-F agent?
Answer: C
Explanation:
When FortiNAC-F manages VPN clients through a FortiGate, the agent plays a fundamental role in device identification that standard network protocols cannot provide on their own. In a standard VPN connection, the FortiGate establishes a Layer 3 tunnel and assigns a virtual IP address to the client. While the FortiGate sends a syslog message to FortiNAC-F containing the username and this assigned IP address, it typically does not provide the hardware (MAC) address of the remote endpoint ' s physical or virtual adapter.
FortiNAC-F relies on theMAC addressas the primary unique identifier for all host records in its database.
Without the MAC address, FortiNAC-F cannot correlate the incoming VPN session with an existing host record to apply specific policies or track the device ' s history. By running either a Persistent or Dissolvable Agent, the endpoint retrieves its own MAC address and communicates it directly to the FortiNAC-F service interface. This allows the " IP to MAC " mapping to occur. Once FortiNAC-F has both the IP and the MAC, it can successfully identify the device, verify its status, and send the appropriateFSSO tagsor group information back to the FortiGate to lift network restrictions.
Furthermore, while the agent can also perform compliance checks (Option D), the architectural requirement for the agent in a managed VPN environment is primarily driven by the need for session data correlation- specifically the collection of the IP and MAC address pairing.
" Session Data Components: * User ID (collected via RADIUS, syslog and API from the FortiGate). * Remote IP address for the remote user connection (collected via syslog and API from the FortiGate and from the FortiNAC agent). *Device IP and MAC address (collected via FortiNAC agent).... The Agent is used to provide the MAC address of the connecting VPN user (IP to MAC). " -FortiNAC-F FortiGate VPN Integration Guide: How it Works Section.
NEW QUESTION # 23
Refer to the exhibit.
If a host is connected to a port in the Building 1 First Floor Ports group, what must also be true to match this user/host profile?
Answer: A
Explanation:
The User/Host Profile in FortiNAC-F is the fundamental logic engine used to categorize endpoints for policy assignment. As seen in the exhibit, the configuration uses a combination of Boolean logic operators (OR and AND) to define the "Who/What" attributes.
According to the FortiNAC-F Administrator Guide, attributes grouped together within the same bracket or connected by an OR operator require only one of those conditions to be met. In the exhibit, the first two attributes are "Host Role = Contractor" OR "Host Persistent Agent = Yes". This forms a single logical block. This block is then joined to the third attribute ("Host Security Access Value = Contractor") by an AND operator. Consequently, a host must satisfy at least one of the first two conditions AND satisfy the third condition to match the "Who/What" section.
Furthermore, the profile includes Location and When (time) constraints. The exhibit shows the location is restricted to the "Building 1 First Floor Ports" group. The "When" schedule is explicitly set to Mon-Fri 6:00 AM - 5:00 PM. For a profile to match, all enabled sections (Who/What, Locations, and When) must be satisfied simultaneously. Therefore, the host must meet the conditional contractor/agent criteria, possess the specific security access value, and connect during the defined 6 AM to 5 PM window.
"User/Host Profiles use a combination of attributes to identify a match. Attributes joined by OR require any one to be true, while attributes joined by AND must all be true. If a Schedule (When) is applied, the host must also connect within the specified timeframe for the profile to be considered a match. All criteria in the Who/What, Where, and When sections are cumulative." - FortiNAC-F Administration Guide: User/Host Profile Configuration.
NEW QUESTION # 24
Refer to the exhibit.
Given this topology, and a layer 3 registration network configuration, which IP address would be designated in the DHCP relay configuration for the registration network?
Answer: A
Explanation:
The correct answer is D . In a Layer 3 registration or isolation network design, DHCP requests from the isolated registration VLAN are not served locally on that VLAN by a normal production DHCP server.
Instead, the registration VLAN's DHCP relay must forward DHCP traffic to FortiNAC-F port2 , because port2 is the captive network service interface. The study guide states that in Layer 3 captive networks, DHCP traffic is relayed to port2 from the captive networks, and that the FortiNAC-F port2 interface provides DHCP, DNS, and captive portal services for hosts assigned to those captive networks.
In the exhibit, the registration VLAN is 192.168.10.x/24 , with gateway 192.168.10.254 . That gateway is where the DHCP relay would be configured, but it is not the relay destination. The relay destination must be the FortiNAC-F port2 address, shown as 192.168.200.10 . The corporate DHCP server 192.168.100.75 is for production network addressing, not registration isolation. The FortiNAC-F port1 address 192.168.100.20 is the administrative or production-facing interface, not the captive network service interface. Therefore, the DHCP relay should point to 192.168.200.10 .
NEW QUESTION # 25
While discovering network infrastructure devices, a switch appears in the inventory topology with a question mark (?) on the icon. What would cause this?
Answer: B
Explanation:
In FortiNAC-F, the Inventory topology uses specific icons to represent the status and model of discovered network infrastructure. When a switch or other network device is discovered via SNMP, FortiNAC-F retrieves its System ObjectID (sysObjectID) to identify the specific make and model. This OID is then compared against the internal database of supported device mappings.
A question mark (?) icon appearing on a discovered switch indicates that while the discovery process successfully communicated with the device (meaning SNMP credentials were correct), the SNMP ObjectID is not recognized or mapped in the current version of FortiNAC-F. This essentially means the device is "unsupported" by the current software out-of-the-box. Because the OID is unknown, FortiNAC-F does not know which CLI or SNMP command set to use for critical functions like L2 polling (host visibility) or VLAN switching (enforcement). To resolve this, an administrator can manually "Set Device Mapping" to a similar existing model or a "Generic SNMP Device" if only basic L3 visibility is required.
"Discovered devices displaying a '?' icon indicate the currently running version does not have a mapping for that device's System OID (device is not supported). Device mappings are used to manage the device by performing functions such as L2/L3 Polling, Reading, and Switching VLANs." - Fortinet Technical Tip: Options for devices unable to be modeled in Inventory.
NEW QUESTION # 26
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