Question 350
At Northgate Telecom, the network security operations team administers FortiGate-based protection for a multi-region subscriber service network under requirements for continuous secure intersite connectivity and policy traceability. The security reviewer verifies a claimed fix for: A FortiGate policy should trust only client-certificate-backed identities, but the configured authentication group accepts password-only users. Which observed outcome BEST demonstrates that the intended correction works?
Explanation
Correct Answer
A valid approved client certificate authenticates while a test client without the required credential cannot use the protected policy. This outcome validates the intended correction for: A FortiGate policy should trust only client-certificate-backed identities, but the configured authentication group accepts password-only users. The associated approved corrective action is: Configure the intended supported certificate-based user authentication workflow and constrain the corresponding identity policy. The Northgate Telecom reviewer can therefore distinguish observable protection from an untested configuration claim.
Incorrect Answers
An assigned operator can change only its intended VDOM policies and another VDOM remains unchanged after a denied test edit. This would verify a separate corrective action: Assign administrators and policies to the appropriate VDOM context with least-privilege administrative profiles. That separate change addresses: Two virtual domains on FortiGate unintentionally share policy administration privileges even though different teams must manage them separately. It does not validate the current Northgate Telecom issue: A FortiGate policy should trust only client-certificate-backed identities, but the configured authentication group accepts password-only users. The relevant acceptance evidence is: A valid approved client certificate authenticates while a test client without the required credential cannot use the protected policy.
A controlled session matches the right firewall policy and the centrally defined translated source address in session diagnostics. This would verify a separate corrective action: Configure and validate the applicable central SNAT map independently of the policy's allow decision. That separate change addresses: A FortiGate configuration uses central SNAT but an engineer expects an individual firewall-policy NAT toggle to determine outgoing translation. It does not validate the current Northgate Telecom issue: A FortiGate policy should trust only client-certificate-backed identities, but the configured authentication group accepts password-only users. The relevant acceptance evidence is: A valid approved client certificate authenticates while a test client without the required credential cannot use the protected policy.
A permitted test session creates a searchable traffic record containing its source, destination, action and policy ID. This would verify a separate corrective action: Enable the required traffic log mode on the specific firewall policy and verify the remote logging destination. That separate change addresses: Operations cannot audit who passed through a newly created FortiGate rule because the policy's traffic logging setting was disabled. It does not validate the current Northgate Telecom issue: A FortiGate policy should trust only client-certificate-backed identities, but the configured authentication group accepts password-only users. The relevant acceptance evidence is: A valid approved client certificate authenticates while a test client without the required credential cannot use the protected policy.