Question 270
At Bluehaven Transit, the operations firewall team administers FortiGate-based protection for rail operations support and scheduling applications under requirements for safe change windows and precise branch access. An independent validation is requested for: Several departments must egress through different public addresses for attribution but all FortiGate policies use the WAN interface address. Which observed outcome BEST demonstrates that the intended correction works?
Explanation
Correct Answer
Controlled requests from each department show the correct distinct approved public source address in external records. This outcome validates the intended correction for: Several departments must egress through different public addresses for attribution but all FortiGate policies use the WAN interface address. The associated approved corrective action is: Assign the intended source NAT IP pools to the relevant policies or supported central NAT mappings by department. The Bluehaven Transit reviewer can therefore distinguish observable protection from an untested configuration claim.
Incorrect Answers
A revoked test account cannot establish a new permitted session and existing authorization expires or is invalidated as documented. This would verify a separate corrective action: Set supported authentication session lifetime and revocation behavior consistent with the remote identity source and risk requirements. That separate change addresses: Firewall user sessions remain authorized long after an employee's access is revoked because authentication timeouts and revocation steps were not reviewed. It does not validate the current Bluehaven Transit issue: Several departments must egress through different public addresses for attribution but all FortiGate policies use the WAN interface address. The relevant acceptance evidence is: Controlled requests from each department show the correct distinct approved public source address in external records.
A harmless controlled test matching an intended security rule generates an inspection event on the correct traffic policy. This would verify a separate corrective action: Attach the appropriate antivirus, web, application and IPS profiles to the matching policy using supported inspection modes. That separate change addresses: A firewall allow rule is installed without the required content security profile and traffic bypasses the organization's documented inspection policy. It does not validate the current Bluehaven Transit issue: Several departments must egress through different public addresses for attribution but all FortiGate policies use the WAN interface address. The relevant acceptance evidence is: Controlled requests from each department show the correct distinct approved public source address in external records.
An unauthenticated client is redirected or denied according to policy and an authorized signed-in user receives only its approved access. This would verify a separate corrective action: Configure the appropriate identity-based authentication rule and captive portal method for the designated user segment. That separate change addresses: An office requires browser-based authentication for unknown users, but the FortiGate policy allows traffic without enforcing its captive portal. It does not validate the current Bluehaven Transit issue: Several departments must egress through different public addresses for attribution but all FortiGate policies use the WAN interface address. The relevant acceptance evidence is: Controlled requests from each department show the correct distinct approved public source address in external records.