Fortinet NSE5_FNC_AD_7.6 Exam With Confidence Using Practice Dumps

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 A . When FortiNAC-F needs near real-time Layer 2 visibility, it relies on link traps, MAC notification traps, RADIUS, or scheduled/manual Layer 2 polling. The study guide explains that MAC notification traps contain the MAC address learned or removed from the switch MAC address table and the associated port, allowing FortiNAC-F to update its database when hosts connect, disconnect, or move. It also states that MAC notification traps are the preferred method for learning and updating Layer 2 information.

If a newly modeled switch does not show hosts as they connect or move between ports, the likely problem is that MAC notification traps are not correctly configured or not reaching FortiNAC-F . Layer 3 polling failure would affect IP-to-MAC correlation, not the ability to learn which switch port a MAC address is connected to. Disabled scheduled polling could delay updates, but it would not be the best explanation when the expected behavior is immediate host detection during connection or movement testing. Contact polling only checks whether the device is reachable; it does not collect host MAC-to-port visibility.

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.