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| Section | Objectives |
|---|---|
| Switching and Wired Access | - VLANs, trunks, and segmentation - PoE and endpoint connectivity design - FortiSwitch management and FortiLink configuration |
| Wireless LAN Integration | - Wireless security and authentication methods - RF planning and optimization basics - FortiAP deployment and provisioning |
| Monitoring, Troubleshooting, and Operations | - Performance monitoring and optimization - Troubleshooting LAN Edge connectivity issues - Logging and analytics in Fortinet Security Fabric |
| LAN Edge Architecture Fundamentals | - Enterprise LAN design concepts - Fortinet Security Fabric integration in LAN environments - Zero Trust Network Access principles for LAN Edge |
| Network Access Control and Security | - Device identification and profiling - Endpoint compliance and posture checks - Role-based access control |
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問題 #107
Connectivity tests are being performed on a newly configured VLAN. The VLAN is configured on a FortiSwitch device that is managed by FortiGate. During testing, it is observed that devices within the VLAN can successfully ping FortiGate. and FortiGate can also ping these devices.
Inter-VLAN communication is working as expected. However, devices within the same VLAN are unable to communicate with each other.
What could be causing this issue?
答案：C
解題說明：
Observed behavior:
* Devices in the VLANcan ping FortiGate# gateway reachability OK.
* FortiGatecan ping devicesin that VLAN # return path OK.
* Inter-VLAN routingworks # FortiGate's L3 and policies are fine.
* Devices in the same VLAN cannot ping each other# problem is on theL2 switching plane, not L3.
On FortiSwitch (managed by FortiGate), there is a feature calledAccess VLAN(sometimes described in NAC
/dynamic segmentation context):
* WhenAccess VLANis enabled on a VLAN, the switchdoes not perform normal L2 forwarding between hosts in that VLAN.
* Instead, all traffic from endpoints in that VLAN isforced upstream to FortiGate, as if every frame were destined for the gateway.
* This is used for designs where you wantall intra-VLAN traffic inspected by the firewall, implementing micro-segmentation.
Resulting behavior:
* Host # FortiGate: works (frames are forwarded to FortiGate).
* FortiGate # Host: works (routed back).
* Host A # Host B (same VLAN):
* Frame from A goes to FortiGate.
* FortiGate seessource and destination in same subnet; depending on policy, it may drop or not have a policy allowing that traffic.
* Even if allowed, certain designs still break pure L2 expectations.
In the exam scenario, the key point is:
IfAccess VLAN is enabled,local L2 communication within that VLAN is disabled, so hosts in the same VLAN cannot communicate directly.
That perfectly explains:
* Same VLAN hosts can't ping each other
* But they can both reach FortiGate and beyond
Why the other options are less likely / incorrect
* B. FortiSwitch MAC address table is missing entries
* If MAC table were empty/bad,nothingin that VLAN would work properly, including pinging FortiGate.
* C. FortiGate ARP table is missing entries
* Then FortiGate couldn't ping the devices either; but it can.
* D. Native VLAN misconfigured on ports
* That would affect connectivity to FortiGate too, not only host-to-host.
問題 #108
You are configuring FortiAuthenticator to integrate with FSSO for user identification. To enable FortiAuthenticator to extract user information from syslog messages and inject it into FSSO, you have configured syslog matching rules.
What is the role of syslog matching rules in the process of injecting user information into FSSO?
答案：D
解題說明：
When FortiAuthenticator is used as anFSSO agentbased onsyslog, it must:
* Parse incoming syslog messagesfrom devices (firewalls, WLAN controllers, VPN concentrators, etc.).
* Extract identity fieldssuch as:
* Username
* IP address
* Login/logout event indicators
Syslogmatching ruleson FortiAuthenticator define:
* Which syslog messages are relevant (by facility, message pattern, or regex).
* How to capture specific fields (username, IP, group, event type).
FortiAuthenticator then uses this parsed data toinject logon sessions into FSSO, so FortiGate can apply identity-based policies.
Thus, the role of syslog matching rules is exactly as described inC.
* A: Group mapping is handled separately via directory groups / FSSO config, not directly by matching rules.
* B: Enforcement of authentication policies is done on FortiGate, not directly by the matching rules.
* D: While irrelevant logs can be ignored via rules, the primary purpose isparsing and extraction, not generic filtering.
問題 #109
Refer to the exhibits.
Examine the FortiManager configuration and FortiGate CLI output shown in the exhibit.
The NAC feature is being tested with a device connected to port2 on managed FortiSwitch S224SPTF19005867. The NAC policy has been applied to port2, and traffic was generated from the test device. However, the traffic from the test device does not match the NAC policy and remains in the onboarding VLAN.
What are two possible reasons why the test device is not being correctly classified by the NAC policy?
(Choose two.)
答案：A,C
解題說明：
From the FortiManager NAC policy:
Category =Device
Match criteria includeMAC addressandOperating System = Linux
Action =Assign VLAN "Students"
From the FortiGate CLI:
diagnose switch-controller switch-info mac-table ...
MAC: 70:88:6b:8c:4a:ce VLAN: 4089 Port: port2
diagnose switch-controller mac-device mac onboarding
VLAN 4089 MAC 70:88:6b:8c:4a:ce
So the device is stuck inVLAN 4089, which is theonboarding VLAN. No NAC policy is matched.
For a NAC policy to match, FortiGate needsdevice-identity information, which comes fromdevice detection on the VLAN / FortiLink interfaceplus theattributes that the policy expects(OS, MAC, etc.).
A). Device detection is not enabled on VLAN 4089.
If device detection is disabled on the interface/VLAN where the endpoint lives, FortiGate cannot learn OS / device info.
Without this, the NAC engine cannot compare against the NAC policy (which relies on OS and other attributes), so the device remains in the onboarding VLAN.#This is a valid root cause.
B). The device operating system detected by FortiGate is not Linux.
The NAC policy explicitly requiresOperating System = Linux.
If the endpoint is actually Windows/macOS, or the OS fingerprint is still "Unknown", the policy will never match, and the device stays in onboarding.#Also a valid reason.
C). Management communication between FortiGate and FortiSwitch is down.
CLI output (switch-info mac-table and mac-device) proves FortiGate is talking to the switch and sees MAC
/VLAN/port information.#Not a valid reason.
D). The MAC address configured on the NAC policy is incorrect.
The exhibits show the MAC in the NAC policy matches the MAC appearing in the MAC table.#Not the cause here.
問題 #110
Refer to the exhibits.
Which include debug output and SSL VPN configuration details.
An SSL VPN has been configured on FortiGate. To enhance security, the administrator enabled Required Client Certificate in the SSL VPN settings. However, when a user attempts to connect, authentication fails.
Which configuration change is needed to fix the issue and allow the user to connect?
答案：C
解題說明：
The SSL-VPN configuration hasRequire Client Certificateenabled. When this is enabled, FortiOS performs two checks:
* Normal user authentication(username/password or PKI user)
* Additional client certificate check- the client certificatemust be signed by a CA that FortiGate trusts FortiOS documentation for "SSL VPN with certificate authentication" states:
* "The client certificate only needs to be signed by a known CA in order to pass authentication."
* "The CA certificate is the certificate that signed both the server certificate and the user certificate...
The CA certificate is available to be imported on the FortiGate."
The debug output shows key lines:
* __quick_check_peer-CA does not match.
* Issuer of cert depth 0 is not detected in CMDB.
This tells us:
* FortiGatedoes see the user's certificate,
* Butcannot find the issuing CAin its local CA certificate store ("CMDB" = configuration database).
This means theCA that signed the user certificate has not been importedinto FortiGate.
Now evaluate the options:
* A. Enable Redirect HTTP to SSL-VPN- affects only redirection from HTTP to HTTPS; it has nothing to do with certificate validation.
* B. Import the CA that signed the SSL VPN Server Certificate- the server certificate is already working (the portal comes up) and its CA is not what the debug complains about; the error is about the peer (user) certificate. Often the same CA signs both, but the failing check specifically says the issuer of the client cert is not in CMDB.
* C. Set the user certificate as the Server Certificate- incorrect; server and client certificates serve different roles.
* D. Import the CA that signed the user certificate to FortiGate- this directly addresses the debug error and aligns with the documented requirement that the CA which issued the user certificate must be known to FortiGate.
問題 #111
Refer to the exhibits.
You are configuring FortiAuthenticator to authenticate wireless users through Active Directory using LDAP. The users send their authentication requests to FortiAuthenticator through RADIUS, with FortiAuthenticator serving as the back-end authentication server.
On FortiGate, a RADIUS server pointing to FortiAuthenticator has been configured. Although the connection to the RADIUS server is successful on FortiGate, authentication for the wireless users fails.
After reviewing the configurations on both FortiGate and FortiAuthenticator, you notice that the RADIUS Service Policy appears to be misconfigured.
Which configuration step might be missing?
答案：A
解題說明：
The RADIUS service policy shows that the realm is configured with a Windows AD LDAP source, but Windows AD Domain Authentication is not enabled. When authenticating wireless users through RADIUS using EAP-MSCHAPv2, FortiAuthenticator must perform domain authentication against Active Directory. Without enabling Windows AD Domain Authentication in the Identity Sources section, FortiAuthenticator cannot properly validate the user credentials against AD, resulting in authentication failure even though the RADIUS connectivity test from FortiGate succeeds.
問題 #112
......
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