Question 400
The team at an airport terminal has corrected this condition: A temporary authentication failure repeats at the same hour daily but an investigator reviews only the last ten minutes. Which preventive practice BEST addresses the identified mechanism?
Explanation
Correct Answer
Document recurring incident frequency and choose adequate analysis retention windows. This repeatable safeguard addresses the mechanism—short observation windows may miss periodic network service failures—and reduces the chance that the specific fault recurs.
Incorrect Answers
Test critical alert delivery after staff, email or webhook routing changes. This protects against another issue—an AP goes offline at a remote store, but the wireless on-call team receives no notification despite data appearing in the portal—but is not the most direct prevention for a temporary authentication failure repeats at the same hour daily but an investigator reviews only the last ten minutes.
Review radio-event history when retry trends change after deployment activity. This protects against another issue—a WLAN's aggregate retry rate rises after AP density increases, but no one inspects spectrum and radio event history—but is not the most direct prevention for a temporary authentication failure repeats at the same hour daily but an investigator reviews only the last ten minutes.
Correlate switch maintenance and AP availability logs during wireless incidents. This protects against another issue—an operator sees an AP disconnect event immediately after a scheduled PoE switch reboot but investigates only WLAN encryption—but is not the most direct prevention for a temporary authentication failure repeats at the same hour daily but an investigator reviews only the last ten minutes.