Question 210
At Willowbrook Education, a team reports that it corrected the following problem affecting student collaboration platforms: A datacenter deploys endpoint protection but no centralized logging or incident correlation. Which observation BEST verifies that the correction actually worked?
Explanation
Correct Answer
A seeded suspicious event generates a correlated incident with an accountable responder. This is the decisive evidence for the original problem: A datacenter deploys endpoint protection but no centralized logging or incident correlation. It verifies that the intended corrective control—Add monitored telemetry and response processes as a detective layer alongside prevention—works in the relevant environment; a completed change ticket alone would not prove the outcome at Willowbrook Education.
Incorrect Answers
A compromised user workstation cannot connect directly to device management interfaces. This would be relevant evidence for a different failure: A campus network places user devices, servers, and management interfaces in one unrestricted trust zone, usually addressed by Segment network roles and require explicit inter-zone policy enforcement. It does not demonstrate that the current problem at Willowbrook Education was resolved. The specific required evidence is: A seeded suspicious event generates a correlated incident with an accountable responder.
A tabletop or controlled exercise restores protected service while containing the simulated threat. This would be relevant evidence for a different failure: A security program has excellent prevention but no tested recovery or containment path after compromise, usually addressed by Design incident containment, backup recovery, and resilience processes as complementary layers. It does not demonstrate that the current problem at Willowbrook Education was resolved. The specific required evidence is: A seeded suspicious event generates a correlated incident with an accountable responder.
Routine accounts cannot change firewall policy and privileged sessions are individually audited. This would be relevant evidence for a different failure: Administrators use the same account for routine email and firewall changes, usually addressed by Separate administrative identities and require privileged access controls for management operations. It does not demonstrate that the current problem at Willowbrook Education was resolved. The specific required evidence is: A seeded suspicious event generates a correlated incident with an accountable responder.