Question 470
At Willowbrook Education, a team reports that it corrected the following problem affecting student collaboration platforms: New access-control rules are edited in management but never deployed to the active firewall. Which observation BEST verifies that the correction actually worked?
Explanation
Correct Answer
Policy revision on the managed device matches the approved configuration. This is the decisive evidence for the original problem: New access-control rules are edited in management but never deployed to the active firewall. It verifies that the intended corrective control—Deploy the approved policy changes and validate device deployment status—works in the relevant environment; a completed change ticket alone would not prove the outcome at Willowbrook Education.
Incorrect Answers
The unauthorized application is denied and permitted services retain connectivity. This would be relevant evidence for a different failure: A Cisco Secure Firewall access-control rule permits a risky application by port while its application detector identifies an unauthorized service, usually addressed by Use application visibility and control criteria in the FTD access control policy. It does not demonstrate that the current problem at Willowbrook Education was resolved. The specific required evidence is: Policy revision on the managed device matches the approved configuration.
A test from the intended subnet succeeds and adjacent subnets remain denied. This would be relevant evidence for a different failure: A Cisco FTD rule that should be narrow matches all internal subnets because a variable references the wrong network object, usually addressed by Correct network objects and evaluate the effective access-control match criteria. It does not demonstrate that the current problem at Willowbrook Education was resolved. The specific required evidence is: Policy revision on the managed device matches the approved configuration.
The failover test keeps approved traffic paths controlled and consistent. This would be relevant evidence for a different failure: A high-availability FTD pair has inconsistent policy or health status before a planned cutover, usually addressed by Verify active/standby health and successful policy deployment to both nodes. It does not demonstrate that the current problem at Willowbrook Education was resolved. The specific required evidence is: Policy revision on the managed device matches the approved configuration.