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| Section | Objectives |
|---|---|
| Topic 1: Authentication and Integration | - RADIUS and TACACS+ integration - Directory services (LDAP/Active Directory) integration - Integration with FortiGate and FortiAuthenticator |
| Topic 2: Network Discovery and Profiling | - Device discovery methods - Endpoint profiling and classification - Asset visibility and inventory management |
| Topic 3: FortiNAC Architecture and Deployment | - FortiNAC system components and architecture overview - Deployment models and sizing considerations - Integration with Fortinet Security Fabric |
| Topic 4: Access Control and Policy Enforcement | - Role-based access control policies - Network access control methods (802.1X, agentless, etc.) - Quarantine and remediation workflows |
| Topic 5: Monitoring, Troubleshooting, and Administration | - High availability and backup/restore procedures - System monitoring and logging - Troubleshooting endpoint access issues |
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63. Frage
A user was attempting to register their host through the registration captive portal. After successfully registering, the host remained in the registration VLAN. Which two conditions would cause this behavior? (Choose two.)
Antwort: B,D
Begründung:
The process of moving a host from a Registration VLAN to a Production VLAN (Access VLAN) is a fundamental part of the FortiNAC-F "VLAN steering" workflow. When a host successfully registers via the captive portal, FortiNAC-F evaluates its Network Access Policies to determine the correct VLAN. If the host remains stuck in the Registration VLAN despite a successful registration, it is typically due to port-level restrictions or the presence of other unregistered devices.
The two most common reasons for this behavior as per the documentation are:
The port default VLAN is the same as the Registration VLAN: If the "Default VLAN" field in the switch port's model configuration is set to the same ID as the Registration VLAN, the port will not change state because FortiNAC-F believes it is already in its "normal" or "forced" state.
There is another unregistered host on the same port: FortiNAC-F maintains the security posture of the physical port. If multiple hosts are connected to a single port (e.g., via a hub or unmanaged switch) and at least one host remains "Rogue" (unregistered), FortiNAC-F will generally keep the entire port in the isolation/registration VLAN to prevent the unregistered host from gaining unauthorized access to the production network.
64. Frage
An administrator wants to build device profiling rules based on network traffic, but the network session view is not populated with any records.
Which two settings can be enabled to gather network session information? (Choose two.)
Antwort: B,C
Begründung:
In FortiNAC-F, the Network Sessions view provides a real-time and historical log of traffic flows, including source/destination IP addresses, ports, and protocols. This data is essential for building Device Profiling Rules that 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 the FortiNAC-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 enabling NetFlow settings 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 the REST API to 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.
65. Frage
An administrator wants FortiNAC-F to return a group of user-defined RADIUS attributes in RADIUS responses.
Which condition must be true to achieve this?
Antwort: A
Begründung:
In FortiNAC-F, the RADIUS Attribute Groups feature allows administrators to return customized RADIUS attributes (such as specific VLAN IDs, filter IDs, or vendor-specific attributes) in an Access- Accept packet sent back to a network device. This is particularly useful for supporting
"Generic RADIUS" devices that are not natively supported but can be managed using standard AVPairs.
According to the FortiNAC-F Generic RADIUS Wired Cookbook and the RADIUS Attribute Groups section of the Administration Guide, there is one critical prerequisite for this feature to function: the inbound RADIUS request must contain the Calling-Station-ID attribute. The Calling- Station-ID typically contains the MAC address of the connecting endpoint. Because FortiNAC-F is a host-centric system, it uses the MAC address as the unique identifier to look up the host record, evaluate the associated Network Access Policy, and determine which Logical Network (and thus which Attribute Group) should be applied. If the incoming request lacks this attribute, FortiNAC-F cannot reliably identify the host and, as a safety mechanism, will not include any user-defined RADIUS attributes in the response. This ensures that unauthorized or unidentifiable devices do not receive privileged access through misapplied attributes.
"Configure a set of attributes that must be included in the RADIUS Access-Accept packet returned by FortiNAC... Requirement: Inbound RADIUS request must contain Calling-Station-Id.
Otherwise, FortiNAC will not include the RADIUS attributes. This attribute is used to identify the host and its current state within the FortiNAC database."
66. Frage
Refer to the exhibit. An administrator has configured the DHCP scope for a registration isolation network, but the isolation process isn't working.
What is the problem with the configuration?
Antwort: C
Begründung:
In a FortiNAC-F deployment, the configuration of the DHCP scope for isolation networks (Registration, Remediation, etc.) must perfectly align with the underlying network infrastructure to ensure that isolated hosts can communicate with the FortiNAC appliance. In the provided exhibits, there is a clear discrepancy between the DHCP configuration and the Network Topology.
As shown in the "Network Topology" exhibit, the Registration Network resides on a router interface (or sub-interface) with the IP address 192.168.180.1. This address represents the default gateway for any host placed into the Registration VLAN. However, the "DHCP configuration" exhibit shows the scope "REG-ScopeOne" configured with a Gateway of
10.0.1.254. This 10.0.1.254 address belongs to the management/service network (port2 of FortiNAC), not the registration subnet. If a host in the Registration VLAN receives this incorrect gateway via DHCP, it will attempt to send all off-link traffic to an unreachable IP, preventing it from loading the Captive Portal or communicating with the FortiNAC server.
According to the FortiNAC-F Configuration Wizard Reference, when defining a Layer 3 network scope, the "Gateway" field must contain the IP address of the router interface that acts as the gateway for that specific isolation VLAN. The FortiNAC appliance itself usually sits on a different subnet, and traffic is directed to it via the router's DHCP Relay (IP Helper) and DNS redirection.
"When configuring scopes for a Layer 3 network, the Gateway value must be the IP address of the router interface for that subnet. This allows the host to reach its local gateway to route traffic.
If the gateway is misconfigured, the host will be unable to reach the FortiNAC eth1/port2 interface for registration... Ensure the Gateway matches the network topology for the isolation VLAN."
67. Frage
Refer to the exhibits.
Given the current configuration, what would happen if a contractor triggered two of the defined security filters?
Antwort: C
Begründung:
Each matched security filter generates its own security event. Since the trigger is configured to match any one filter within the defined time limit, multiple matched filters will generate multiple events, but only one security alarm is created when the security rule condition is satisfied.
68. Frage
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