Question 420
At Maplewood Schools, the district IT security team administers FortiGate-based protection for school campuses and a central datacenter under requirements for student protection and restricted management interfaces. An independent validation is requested for: A FortiGate administrator imports only a web server's leaf certificate into a deep-inspection trust chain and omits the required intermediate CA. Which observed outcome BEST demonstrates that the intended correction works?
Explanation
Correct Answer
A controlled HTTPS inspection session validates the full chain without relying on a certificate-warning exception. This outcome validates the intended correction for: A FortiGate administrator imports only a web server's leaf certificate into a deep-inspection trust chain and omits the required intermediate CA. The associated approved corrective action is: Install the appropriate complete supported certificate chain and verify the profile references the intended trusted CA. The Maplewood Schools reviewer can therefore distinguish observable protection from an untested configuration claim.
Incorrect Answers
The system reports a successful current antivirus update and a known safe test signature is recognized by the configured policy. This would verify a separate corrective action: Restore licensed signature update connectivity and check the installed antivirus engine and database versions. That separate change addresses: FortiGate antivirus engines report outdated definitions after FortiGuard connectivity fails and administrators assume local signatures never need updates. It does not validate the current Maplewood Schools issue: A FortiGate administrator imports only a web server's leaf certificate into a deep-inspection trust chain and omits the required intermediate CA. The relevant acceptance evidence is: A controlled HTTPS inspection session validates the full chain without relying on a certificate-warning exception.
A safe test submission reaches the intended sandbox service and its verdict can be correlated with the firewall antivirus event. This would verify a separate corrective action: Configure the supported FortiSandbox or appropriate cloud sandbox integration and required submission path for eligible files. That separate change addresses: A FortiGate malware investigation expects remote sandbox verdicts but the approved sandbox connection is not configured or reachable. It does not validate the current Maplewood Schools issue: A FortiGate administrator imports only a web server's leaf certificate into a deep-inspection trust chain and omits the required intermediate CA. The relevant acceptance evidence is: A controlled HTTPS inspection session validates the full chain without relying on a certificate-warning exception.
The legitimate application works and an unrelated authorized IPS test still triggers protection under the remaining sensor rules. This would verify a separate corrective action: Investigate the specific signature and use a narrowly scoped temporary exclusion or action change after risk approval. That separate change addresses: The IPS engine flags normal application requests as an exploit after a new signature update and operators disable all intrusion protection. It does not validate the current Maplewood Schools issue: A FortiGate administrator imports only a web server's leaf certificate into a deep-inspection trust chain and omits the required intermediate CA. The relevant acceptance evidence is: A controlled HTTPS inspection session validates the full chain without relying on a certificate-warning exception.