Question 310
Following remediation at a logistics office, engineers revisit: A troubleshooting rule permits every application from one support workstation after a service outage, but there is no owner or rollback plan. Which observation would BEST prove the specific issue is resolved?
Explanation
Correct Answer
Only the authorized diagnostic probes work and the broad emergency permission is removed. This evidence directly tests the intended corrective action: Replace it with specific diagnostic services, bounded source and destination, logging and a planned expiration. It confirms the failure mechanism—Unbounded troubleshooting rules can become persistent broad network access.—has been addressed in the actual affected flow.
Incorrect Answers
Only the approved payroll application connects and unrelated web services to that host remain blocked. This would verify resolution of a different case: A production Security policy permits the general web-browsing application to an internal payroll server instead of specifying the business application. It does not show that the reported issue was fixed or that its intended action—Replace it with specific diagnostic services, bounded source and destination, logging and a planned expiration.—worked.
Contractor sessions map to the intended identity group and only assigned applications are reachable. This would verify resolution of a different case: A contractor's User-ID group is used on a permit rule but the firewall has no current user-to-IP mapping for VPN clients. It does not show that the reported issue was fixed or that its intended action—Replace it with specific diagnostic services, bounded source and destination, logging and a planned expiration.—worked.
Only the approved administrative device and user cohort reaches the management service. This would verify resolution of a different case: A Security rule permits domain administrators from a named address range, but the address range also covers contractor kiosks. It does not show that the reported issue was fixed or that its intended action—Replace it with specific diagnostic services, bounded source and destination, logging and a planned expiration.—worked.