Question 460
During an application modernization project at Maple Creek Agriculture, engineers say that they resolved this finding: An administrator creates an allow rule for Internet traffic but never associates appropriate intrusion inspection where required. Which result provides the STRONGEST acceptance evidence?
Explanation
Correct Answer
A controlled known malicious pattern triggers the intended prevention event. This is the decisive evidence for the original problem: An administrator creates an allow rule for Internet traffic but never associates appropriate intrusion inspection where required. It verifies that the intended corrective control—Attach a suitable intrusion policy and inspect deployment and logging options—works in the relevant environment; a completed change ticket alone would not prove the outcome at Maple Creek Agriculture.
Incorrect Answers
The incident query correlates the allowed session with application and source metadata. This would be relevant evidence for a different failure: A network firewall logs only denied packets and analysts cannot investigate suspicious allowed applications, usually addressed by Enable appropriate connection and event logging for selected policy rules. It does not demonstrate that the current problem at Maple Creek Agriculture was resolved. The specific required evidence is: A controlled known malicious pattern triggers the intended prevention event.
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 Maple Creek Agriculture was resolved. The specific required evidence is: A controlled known malicious pattern triggers the intended prevention event.
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 Maple Creek Agriculture was resolved. The specific required evidence is: A controlled known malicious pattern triggers the intended prevention event.