FCSS_LED_AR-7.6 Exam Questions and Answers

QUESTION: 9

Which statement about generating a certificate signing request (CSR) for a CER certificate is true?

Inaccurate or missing fields in the CSR will prevent the CA from validating the request, leading to the rejection of the certificate and possible delays in the deployment process.
If key fields like the common name (CN) and organization (O) are incorrect, the certification authority (CA) will still issue the certificate, but it may not be trusted by certain applications or systems that rely on accurate field information for validation.
CSR fields are primarily used for internal recordkeeping by the requesting organization, and only the public key in the CSR must be accurate for successful certificate signing.
The fields in the CSR are primarily for documentation purposes; any missing or incorrect information will be automatically corrected by the CA during the signing process.

Answer(s): A

Explanation:

The FortiOS documentation explicitly states that a CSR used for certificate signing must contain accurate and valid fields, especially:

Common Name (CN)

Organization (O)

Country (C)

Public key parameters

According to the FortiGate certificate section:

Incorrect CSR field information can cause the CA to reject the request.

Reasons include:

The CA validates identity and organizational information.

Missing or malformed data invalidates PKI requirements.

The CSR is not corrected automatically by the CA.

Therefore:

A is correct.

Options BD contradict PKI principles:

B is false: CAs do not issue certificates with mismatched identity fields for public trust.

C is false: CSR fields are not only for internal use; they define certificate identity.

D is false: CAs do not auto-correct CSR fields.

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QUESTION: 10

Why is it critical to maintain NTP synchronization between FortiGate and FortiSwitch when FortiLink is configured?

To facilitate synchronization of firmware updates across devices
To allow FortiSwitch to communicate with other FortiSwitche devices in the network.
To ensure accurate time for logs, authentication, and event correlation
To allow FortiSwitch to function in standalone mode if FortiGate becomes unavailable

Answer(s): C

Explanation:

FortiGate and FortiSwitchmust share synchronized timewhen operating in FortiLink mode.

Documented reasons in FortiOS:

Accurate time synchronization is required for logs, authentication events, and fabric correlations.

Why it's critical:

802.1X EAP and RADIUS timestamp validation

NAC policy enforcement timestamps

Certificate validation

Log correlation in Security Fabric / FortiAnalyzer

Incorrect options:

A: Firmware synchronization does NOT require NTP.

B: Switch-to-switch communication does not depend on NTP.

D: Standalone mode is unrelated to time sync.

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QUESTION: 11

In addition to requiring a FortiAnalyzer device to configure the Security Fabric, which license must be added to FortiAnalyzer to use Indicators of Compromise (IOC) rules?

loT Security Add-on license
IOC Subscription license
IOC detection is included on FAZ-Basic license
Threat Detection Service license

Answer(s): D

Explanation:

FortiAnalyzer requires a specific license to evaluateIndicators of Compromise (IOC).

From theFortiAnalyzer 7.4.1 Administration Guide:

IOC identification requires theThreat Detection Servicelicense on FortiAnalyzer.

This license enables:

IOC database updates

Compromised host detection

Event correlation based on FortiGuard threat intelligence

Fabric-wide IOC automation triggers

Why the other answers are incorrect:

A: IoT Security add-on is unrelated to IOC rules.

B: There isnoIOC subscription license type for FortiAnalyzer.

C: FAZ-Basic license doesNOTinclude IOC detection.

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QUESTION: 12

Refer to the exhibits.

An LDAP server has been successfully configured on FortiGate. which forwards LDAP authentication requests to a Windows Active Directory (AD) server. Wireless users report that they are unable to authenticate. Upon troubleshooting, you find that authentication fails when using MSCHAPv2.

What is the most likely reason for this issue?

A firewall policy is missing an LDAP authentication rule.
The Windows AD server requires LDAPS (LDAP over SSL) for authentication.
The FortiGate LDAP configuration is missing the correct Bind DN.
FortiGate does not support MSCHAPv2 for LDAP authentication.

Answer(s): D

Explanation:

From the exhibit, LDAP on FortiGate is correctly configured and tested:

diagnose test authserver ldap FAC-LDAP wifi101 password authenticate 'wifi101' against 'FAC-LDAP' succeeded!

Group membership(s) - CN=Domain Users,...

So:

LDAP connectivity works

Bind DN, DN, CNID, and credentials are correct(so optionCis eliminated).

Firewall policies do not affect the802.1X / Wi-Fi authentication stepitself, soAis not the root cause.

Nothing in the scenario indicates that AD is enforcing LDAPS-only; the LDAP test already succeeds using the configured parameters, soBis also excluded.

The Wi-Fi supplicant is configured forPEAP with inner authentication = MSCHAPv2.

MSCHAPv2 is achallengeresponse mechanism designed for RADIUS, not for LDAP simple bind. FortiGate's LDAP implementation uses asimple bind (username/password) over LDAP or LDAPS, and it doesnotimplement MSCHAPv2 against LDAP backends.

In Fortinet's design, if you needPEAP-MSCHAPv2 with Active Directory, you must use:

ARADIUS server(such as Windows NPS or FortiAuthenticator), and

Have FortiGate use RADIUS,notLDAP, as the authentication backend for 802.1X / Wi-Fi users.

Because FortiGate cannot process MSCHAPv2 exchanges directly against an LDAP server, authentication fails when the inner method is MSCHAPv2, even though LDAP works when tested with a simple bind from the CLI.

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QUESTION: 13

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?

Enable Redirect HTTP to SSL-VPN on the SSL VPN configuration page.
Import the CA that signed the SSL VPN Server Certificate to FortiGate.
Set the user certificate as the Server Certificate on the SSL VPN configuration page.
Import the CA that signed the user certificate to FortiGate.

Answer(s): D

Explanation:

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 thepeer (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.

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QUESTION: 14

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.)

Device detection is not enabled on VLAN 4089.
The device operating system detected by FortiGate is not Linux.
Management communication between FortiGate and FortiSwitch is down.
The MAC address configured on the NAC policy is incorrect.

Answer(s): A,B

Explanation:

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.

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QUESTION: 15

A FortiSwitch is not appearing in the FortiGate management interface after being connected via FortiLink.
What could be a first troubleshooting step?

Ensure that the FortiGate security policies allow traffic from the FortiSwitch.
Manually assign a static IP to the FortiSwitch.
Verify that FortiGate device DHCP server is assigning an IP to the FortiSwitch.
Ensure the FortiSwitch has internet access.

Answer(s): C

Explanation:

In FortiLink topologies, a managed FortiSwitch normally gets itsmanagement IP automaticallyfrom theDHCP server on the FortiLink interface. If the switch does not receive an IP:

It cannot form the FortiLink CAPWAP/DTLS control channel.

Therefore it doesnot appearunderWiFi & Switch Controller > FortiSwitch.

FortiOS documentation states that FortiLink uses abuilt-in DHCP serveron the FortiLink interface for onboarding switches.

So thefirst troubleshooting stepis to confirm:

The FortiLink DHCP server is enabled.

Leases are being handed out to the FortiSwitch MAC.

Other options:

A: Security policies do not affect the L2 FortiLink control channel.

B: Static IP may be used but is not the normal first step.

D: Internet access is not required for FortiGate to see the switch.

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QUESTION: 16

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?

To automatically update user group memberships in FSSO based on syslog events
To enforce user authentication policies based on syslog message contents
To define how syslog messages are parsed and extract user information, such as usernames and IP addresses
To filter and block irrelevant syslog messages from being processed by the FortiAuthenticator

Answer(s): C

Explanation:

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.

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Fortinet FCSS_LED_AR-7.6 Exam (page: 2) Fortinet NSE 6 - LAN Edge 7.6 Architect Updated on: 12-Feb-2026

QUESTION: 9

Explanation:

QUESTION: 10

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QUESTION: 11

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QUESTION: 12

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QUESTION: 13

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QUESTION: 14

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QUESTION: 15

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QUESTION: 16

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Fortinet FCSS_LED_AR-7.6 Exam (page: 2)
Fortinet NSE 6 - LAN Edge 7.6 Architect
Updated on: 12-Feb-2026