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問題 #25
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.)
答案：C,D
解題說明：
The process of moving a host from aRegistration VLANto aProduction 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.
Issues with agents (A, B) typically prevent a host from completing compliance or registration but do not usually result in a " stuck " statusafterregistration has already been marked as successful in the system.
" If a port is identified as havingMultiple Hosts, and those hosts require different levels of access, FortiNAC remains in the most restrictive state (Registration or Isolation) until all hosts on that port are authorized...
Additionally, verify theDefault VLANsetting for the port; if the Default VLAN and Registration VLAN match, the system will not trigger a VLAN change upon registration. " -FortiNAC-F Administration Guide:
Troubleshooting Host Management.
問題 #26
Refer to the exhibit.
A FortiNAC-F N+1 HA configuration is shown.
What will occur if CA-2 fails?
答案：B
解題說明：
In anN+1 High Availability (HA)configuration, a single secondary Control and Application (CA) server provides backup for multiple primary CA servers. The FortiNAC-F Manager (FortiNAC-M) acts as the centralized orchestrator for this cluster, monitoring the health of all participating nodes.
According to theFortiNAC-F 7.6.0 N+1 Failover Reference Manual, when a primary CA (such asCA-2in the exhibit) fails, the secondary CA (CA-3) is automatically promoted by the Manager to take over the specific workload and database functions of that failed primary. Crucially, the documentation specifies that even after this promotion, the system architecture maintains its N+1 logic. The secondary CA effectively " assumes the identity " of the failed primary while continuing to operate within the N+1 framework established by the Manager.
It doesnotmerge with CA-1 to form a traditional 1+1 active/passive cluster (A), nor does it engage in load balancing (D), as FortiNAC-F HA is designed for redundancy and failover rather than active traffic distribution. Furthermore, CA-3 does not " share " management with CA-1 (C); it independently handles the tasks originally assigned to CA-2. Throughout this failover state, the Manager continues to oversee the group, and CA-3 remains the designated secondary unit currently acting in a primary capacity for the downed node until CA-2 is restored.
" In an N+1 Failover Group, theSecondary CAis designed to take over the functionality ofany single failed primary componentwithin the group. The FortiNAC Manager monitors the primaries and initiates the failover to the secondary... Once failover occurs, the secondary continues to operate as the backup unit for the failed primary while remaining part of the managed N+1 HA configuration. " -FortiNAC-F 7.6.0 N+1 Failover Reference Manual: Failover Behavior Section.
問題 #27
During an evaluation of state-based enforcement, an administrator discovers that ports that should not be under enforcement have been added to enforcement groups.
In which view would the administrator be able to identify who added the ports to the groups?
(Selected)
答案：D
解題說明：
In FortiNAC-F, accountability and forensic tracking of configuration changes are managed through the Admin Auditing functionality. 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 an Enforcement 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.
The Admin Auditing view (found under Logs > 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, the Event Management view (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. The Port Changes view (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, the Security Events view (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.
問題 #28
When configuring isolation networks in the configuration wizard, why does a layer 3 network typo allow for mora than ono DHCP scope for each isolation network typo?
答案：D
解題說明：
In FortiNAC-F, theLayer 3 Network typeis specifically designed for deployments where the isolation networks-such as Registration, Remediation, and Dead End-are separated from the FortiNAC appliance ' s service interface (port2) by one or more routers. This architecture is common in large, distributed enterprise environments where endpoints in different physical locations or branches must be isolated into subnets that are local to their respective network equipment.
The reason the Configuration Wizard allows for more than one DHCP scope for a single isolation network type (state) is thatthere can be more than one isolation network of each typeacross the infrastructure. For instance, if an organization has three different sites, each site might require its own unique Layer 3 registration subnet to ensure efficient routing and to accommodate local IP address management. By allowing multiple scopes for the " Registration " state, FortiNAC can provide the appropriate IP address, gateway, and DNS settings to a rogue host regardless of which site ' s registration VLAN it is placed into.
When an endpoint is isolated, the network infrastructure (via DHCP Relay/IP Helper) directs the DHCP request to the FortiNAC service interface. FortiNAC then identifies which scope to use based on the incoming request ' s gateway information. This flexibility ensures that the system is not limited to a single flat subnet for each isolation state, supporting a scalable, multi-routed network topology.
" Multiple scopes are allowed for each isolation state (Registration, Remediation, Dead End, VPN, Authentication, Isolation, and Access Point Management). Within these scopes, multiple ranges in the lease pool are also permitted... This configWizard option is used when Isolation Networks are separated from the FortiNAC Appliance ' s port2 interface by a router. " -FortiNAC-F Configuration Wizard Reference Manual:
Layer 3 Network Section.
問題 #29
Refer to the exhibit.
A FortiNAC-F N+1 HA configuration is shown.
What will occur if CA-2 fails?
答案：A
解題說明：
In an N+1 High Availability (HA) configuration, a single secondary Control and Application (CA) server provides backup for multiple primary CA servers. The FortiNAC-F Manager (FortiNAC-M) acts as the centralized orchestrator for this cluster, monitoring the health of all participating nodes.
According to the FortiNAC-F 7.6.0 N+1 Failover Reference Manual, when a primary CA (such as CA-2 in the exhibit) fails, the secondary CA (CA-3) is automatically promoted by the Manager to take over the specific workload and database functions of that failed primary. Crucially, the documentation specifies that even after this promotion, the system architecture maintains its N+1 logic. The secondary CA effectively "assumes the identity" of the failed primary while continuing to operate within the N+1 framework established by the Manager.
It does not merge with CA-1 to form a traditional 1+1 active/passive cluster (A), nor does it engage in load balancing (D), as FortiNAC-F HA is designed for redundancy and failover rather than active traffic distribution. Furthermore, CA-3 does not "share" management with CA-1 (C); it independently handles the tasks originally assigned to CA-2. Throughout this failover state, the Manager continues to oversee the group, and CA-3 remains the designated secondary unit currently acting in a primary capacity for the downed node until CA-2 is restored.
"In an N+1 Failover Group, the Secondary CA is designed to take over the functionality of any single failed primary component within the group. The FortiNAC Manager monitors the primaries and initiates the failover to the secondary... Once failover occurs, the secondary continues to operate as the backup unit for the failed primary while remaining part of the managed N+1 HA configuration." - FortiNAC-F 7.6.0 N+1 Failover Reference Manual: Failover Behavior Section.
問題 #30
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