Free Fortinet NSE6_FNC_AD-7.6 Practice Exam with Questions & Answers

In FortiNAC-F, theInventory topologyuses 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 itsSystem ObjectID (sysObjectID)to identify the specific make and model. This OID is then compared against the internal database of supported device mappings.

Aquestion mark (?)icon appearing on a discovered switch indicates that while the discovery process successfully communicated with the device (meaning SNMP credentials were correct), theSNMP ObjectID is not recognizedor 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 ' ? ' iconindicate the currently running version does not have a mapping for that device ' sSystem 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.

The correct answers are B and C . FortiNAC-F must have a persistent agent on the endpoint if the goal is continual or background endpoint monitoring. The study guide states that the persistent agent is an install-and-stay resident agent and that, after deployment, it communicates back to FortiNAC-F every 15 minutes. It also performs scheduled scans in the background without normal user interaction unless the scan fails. That is the agent model required for continuous compliance monitoring, not a one-time captive portal scan.

A custom scan is also required because the administrator wants to check very specific endpoint conditions: a registry key and a security service. The FortiNAC-F study guide lists Windows custom scan types including Registry Keys and Service , which directly match the two conditions in the question.

Option A is wrong because MDM integration is used to synchronize mobile device data, retrieve MDM-known hosts, receive MDM host updates, and apply policies based on MDM attributes; it is not the required mechanism for checking Windows registry keys or Windows service status. Option D is wrong because a remediation admin scan is not what defines the compliance check itself. The compliance logic must be created as a custom scan, and continuous monitoring requires the persistent agent.

TheN+1 High Availability (HA)architecture was introduced in FortiNAC-F version 7.6 to provide a more scalable and flexible redundancy model compared to the traditional 1+1 active/passive setup. In an N+1 configuration, a single secondary (standby) appliance can provide coverage for multiple primary (active) Control and Application (CA) appliances.

To set up an N+1 HA cluster, there are two fundamental structural requirements:

A FortiNAC-F Manager (FortiNAC-M):Unlike standard 1+1 HA, which can be configured directly between two CAs, N+1 management is centralized. The FortiNAC-M acts as the orchestrator that manages the failover groups, monitors the health of the primaries, and coordinates the promotion of the secondary server if a primary fails.

A FortiNAC-F device designated as a Secondary:The cluster must have one appliance explicitly configured with theSecondary failover role. This device remains in a standby state, receiving database replications from all N primaries in its group until it is called upon to take over the functions of a failed unit.

While a cluster can support multiple primaries (D), it does not strictly require " at least two " to function as an N+1 group; it simply requires N primaries (where N ≥ 1). Additionally, N+1 is typically a Layer 3 managed solution via the Manager, meaning it does not mandate a " dedicated VLAN " for synchronization like some Layer 2 HA deployments.

" In FortiNAC-F 7.6,FortiNAC-Mfunctions as a manager to manage the N+1 Failover Groups... enabling N+M high availability for CAs. To create an N+1 Failover group, you should add thesecondary CAto the FortiNAC-M first, then add the primary CAs. The secondary CA is designed to take over the functionality of any single failed primary component. " —FortiNAC-F 7.6.0 N+1 Failover Reference Manual.

The correct answer is A . The exhibit shows two adapters learned on the same wired port: one appears as a rogue/unknown host, and the other is associated with the Lab Hosts rule. The port is in both Role-Based Access and Forced Registration . FortiNAC-F state-based control takes precedence over policy-based provisioning, and the study guide states that when a rogue host connects to a port in the Forced Registration group, FortiNAC-F isolates that host by moving it into the registration captive network. The guide also explains that the Isolation network can be used as a single network for abnormal host states while still presenting state-specific portal pages.

Because this is a wired switch port using VLAN-based control, FortiNAC-F cannot put one host on the production VLAN and the other host on the isolation portal VLAN at the same time on the same access port. The VLAN change applies to the port, not independently to each MAC address behind that port. Therefore, the presence of the rogue host on a Forced Registration port causes the port to be provisioned to the isolation network. Option B is technically unrealistic for this access-port scenario. Option C is wrong because two MAC addresses alone do not make the port an uplink; FortiNAC-F uses uplink logic for infrastructure-device MACs, manually marked uplinks, or a threshold such as more than 20 MAC addresses. Option D is unrelated because Access Point Management is not triggered by learning two wired hosts on a port.

In FortiNAC-F, theNetwork Sessionsview provides a real-time and historical log of traffic flows, including source/destination IP addresses, ports, and protocols. This data is essential for buildingDevice Profiling Rulesthat rely on " Traffic Patterns " or " Network Footprints " to identify devices (e.g., an IP camera communicating with its specific NVR). If the network session view is empty, the system is not receiving the necessary flow or session data from the network infrastructure.

According to theFortiNAC-F Administration Guide, there are two primary methods to populate this view:

NetFlow/sFlow/IPFIX (C):FortiNAC-F can act as a flow collector. By enablingNetFlowsettings on the FortiNAC-F service interface (port2/eth1) and configuring your switches or routers to export flow data to the FortiNAC IP, the system can parse these packets and record sessions.

Firewall Session Polling (B):For environments with FortiGate firewalls, FortiNAC-F can proactively poll the FortiGate via theREST APIto retrieve its current session table. This is particularly useful as it provides session visibility without requiring the overhead of configuring NetFlow on every access layer switch.

Settings likeLayer 3 Polling(D) only provide ARP table mappings (IP to MAC correlation) and do not provide the detailed flow information required for the session view.

" TheNetwork Sessionsview displays information regarding active and inactive network traffic sessions... To populate this view, FortiNAC must receive data through one of the following methods: •NetFlow/sFlow Support: Configure network devices to send flow data to the FortiNAC service interface. •Firewall Session Polling: Enable session polling on modeled FortiGate devices to retrieve session information via API. These records are then used by the Device Profiler to match rules based on traffic patterns. " —FortiNAC-F Administration Guide: Network Sessions and Flow Data Collection.

In FortiNAC-F, accountability and forensic tracking of configuration changes are managed through theAdmin Auditingfunctionality. When an administrator performs an action that modifies the system state—such as creating a policy, changing a device ' s status, or adding a switch port to anEnforcement Group—the system generates an audit record. This record is essential for troubleshooting scenarios where unauthorized or accidental configuration changes have occurred, leading to unintended network behavior.

TheAdmin Auditingview (found underLogs > Admin Auditing) provides a comprehensive log of the " Who, What, and When " for every administrative session. Each entry includes the username of the administrator, the source IP address from which they accessed the FortiNAC-F console, a precise timestamp, and a detailed description of the modification. In the scenario described, where ports have been incorrectly added to enforcement groups, the Admin Auditing view allows a supervisor to filter by the specific " Port " or " Group " object to identify exactly which administrator executed the command.

In contrast, theEvent Managementview (B) is designed to monitor system and network events, such as RADIUS authentications, host connections, and SNMP trap arrivals. While it tracks system activity, it does not typically log the manual configuration changes performed by admins. ThePort Changesview (C) tracks the operational history of a port (such as VLAN assignment changes and host movements) but does not attribute the administrative assignment of the port to a group. Finally, theSecurity Eventsview (D) is dedicated to alerts triggered by security rules and external threat feeds.

" Admin Auditing displays a record of all modifications made to the FortiNAC-F system by an administrator. This view includes the administrator ' s name, the date and time of the change, and a description of the action taken. It is the primary resource for determining which administrative user performed a specific configuration change, such as modifying port group memberships or altering policy settings. " —FortiNAC-F Administration Guide: Logging and Auditing Section.

The correct answer is A . In a FortiNAC-F 1+1 HA deployment, failover from primary to secondary is automatic, but failback to the primary is not automatic . The study guide states that if the primary device or its network connectivity fails, the secondary assumes control automatically, but restoration of a failed-over HA deployment is a manual administrator-driven process. It further explains that after the cause of the failover is resolved, the administrator must use the Resume Control button to transfer control back to the primary server.

That means when the primary comes back online, it does not immediately take over again. The pair can resume HA communication, but the secondary remains the in-control node until an administrator deliberately returns control to the primary. Option B is wrong because FortiNAC-F 1+1 HA is active-passive, not load-balanced. Option C is wrong because the restored primary does not power itself down for maintenance. Option D is a trap: five failed heartbeats are used in failure detection and gateway validation logic, not as an automatic failback timer. The exam point is simple: automatic failover, manual failback .

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 .

A FortiNAC-F port can belong to both Forced Registration and Forced Remediation system groups . These enforcement groups are not mutually exclusive and are not evaluated according to a ranking between the groups. Instead, FortiNAC-F determines the applicable enforcement according to the state of each host connected through that point of connection .

The Study Guide explicitly demonstrates overlapping enforcement membership: all Building 1 ports are members of Forced Registration , while second- and third-floor ports are additionally members of Forced Remediation .

FortiNAC-F then applies state-specific logic:

A rogue/unregistered host on the port satisfies Forced Registration and is moved to the Registration isolation network.

An at-risk host on the same port satisfies Forced Remediation and is moved to the Quarantine/Remediation isolation network.

The exhibit is particularly relevant because the highlighted port shows Multiple Hosts connected. Each host is evaluated independently according to its state, so different enforcement mechanisms can apply to different endpoints sharing that port.

Therefore, placing the port in both groups enables both types of enforcement , depending on the state of the connected hosts.

Study Guide Reference: State-Based Control → System Groups; Logic to Determine Isolation; Non-Normal Status Device Evaluation , pp. 212–214 .

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The correct answer is C . In FortiNAC-F Manager clustering, the active cluster management role is the leader role, and other cluster members operate as worker nodes. Fortinet’s FortiNAC-F 7.6 Manager Cluster Guide states that when a worker is promoted to leader during automatic transition, the original leader becomes a worker node when it comes back online. It also explains that a cluster has one leader and can have multiple workers, with leader/worker roles used for cluster management and heartbeat exchange.

So, if the cluster manager becomes non-responsive and another node takes over leadership, the recovered manager does not automatically reclaim the leader role. It rejoins as a worker node. Option A is wrong because recovery does not automatically remove it into a standalone group. Option B is wrong because automatic return to the previous manager/leader state would create instability and possible split-brain behavior. Option D is wrong because “standby” is not the role described for FortiNAC-F Manager clustering in this context; the documented cluster roles are leader and worker.