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質問 # 11
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?
正解：A
解説：
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.
質問 # 12
An organization has FortiNAC-F deployed and is using Layer 3 isolation networks across multiple sites with firewalls. At a minimum, which three protocols must be allowed between the isolation networks and FortiNAC-F? (Choose three.)
正解：C、D、E
解説：
The correct answers are C, D, and E . In a Layer 3 captive or isolation network design, FortiNAC-F port2 acts as the captive network service interface. The study guide states that Layer 3 captive networks require DHCP traffic to be relayed to port2 from the captive networks, and that the FortiNAC-F interface provides DHCP, DNS, and captive portal services to hosts assigned to any captive network.
That means the firewall path between the isolation VLANs and FortiNAC-F must allow DHCP , so isolated endpoints can receive an IP address from the FortiNAC-F captive network scope; DNS , so the isolated endpoint uses FortiNAC-F as its DNS server and gets redirected correctly; and HTTP/HTTPS , so the endpoint can load the FortiNAC-F captive portal page. The guide's browser-redirection flow confirms this sequence: the host is moved to the isolation VLAN, requests DHCP, receives FortiNAC-F as the DNS server, performs DNS lookup, and then Apache/Tomcat services present the portal content.
Option A , DDNS, is not required for captive portal operation. Option B , NTP, may be useful for endpoint time accuracy or certificate-related workflows, but it is not part of the minimum traffic required for FortiNAC- F isolation network operation.
質問 # 13
Which two statements are true about integrating a third-party device using SNMP traps from that device as input to generate an event? (Choose two.)
正解：A、D
質問 # 14
An administrator wants to build a security rule that will quarantine contractors who attempt to access specific websites.
In addition to a user host profile, which Iwo components must the administrator configure to create the security rule? (Choose two.)
正解：A、C
解説：
In FortiNAC-F, the Security Incidents engine is used to automate responses to security threats reported by external devices. When an administrator wants to enforce a policy, such as quarantining contractors who access restricted websites, they must create a Security Rule. A Security Rule acts as the "if-then" logic that correlates incoming security data with the internal host database.
The documentation specifies that a Security Rule consists of three primary configurable components:
User/Host Profile: This identifies who or what the rule applies to (in this case, "Contractors").
Trigger: This is the event that initiates the rule evaluation. In this scenario, the Trigger would be configured to match specific syslog messages or NetFlow data indicating access to prohibited websites. Triggers use filters to match vendor-specific data, such as a "Web Filter" event from a FortiGate.
Action: This defines what happens when the Trigger and User/Host Profile are matched. For this scenario, the administrator would select a "Quarantine" action, which instructs FortiNAC-F to move the endpoint to a restricted VLAN or apply a restrictive ACL.
While "Methods" (A) relate to authentication and "Security Strings" (E) are used for specific SNMP or CLI matching, they are not the structural components of a Security Rule in the Security Incidents menu.
"Security Rules are used to perform a specific action based on certain criteria... To configure a Security Rule, navigate to Logs > Security Incidents > Rules. Each rule requires a Trigger to define the event criteria, an Action to define the automated response (such as Quarantine), and a User/Host Profile to limit the rule to specific groups." - FortiNAC-F Administration Guide: Security Rules and Incident Management.
質問 # 15
While deploying FortiNAC-F devices in a 1+1 HA configuration, the administrator has chosen to use the shared IP address option.
Which condition must be met for this type of deployment?
正解：B
解説：
In a 1+1 High Availability (HA) deployment, FortiNAC-F supports two primary methods for management access: individual IP addresses or a Shared IP Address (also known as a Virtual IP or VIP). The Shared IP option is part of a Layer 2 HA design, which simplifies administration by providing a single URL or IP that always points to whichever appliance is currently in the "Active" or "In Control" state.
For a Shared IP configuration to function correctly, the Primary and Secondary administrative interfaces (port1) must be on the same subnet. This requirement exists because the Shared IP is a logical address that is dynamically assigned to the physical interface of the active unit. Since only one unit can own the IP at a time, both units must reside on the same broadcast domain (Layer 2) to ensure that ARP requests for the Shared IP are correctly answered and that the gateway remains reachable regardless of which unit is active. If the appliances were on different subnets (a Layer 3 HA design), a shared IP could not be used because it cannot "float" across different network segments; instead, administrators would need to manage each unit via its unique physical IP or use a FortiNAC Manager.
"For L2 HA configurations, click the Use Shared IP Address checkbox and enter the Shared IP Address information... If your Primary and Secondary Servers are not in the same subnet, do not use a shared IP address. The shared IP address moves between appliances during a failover and recovery and requires both units to reside on the same network." - FortiNAC-F High Availability Reference Manual: Shared IP Configuration.
質問 # 16
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