Question 340
At Timberline Foods, the supply-chain assurance team is conducting a coordinated processing-plant assessment under requirements for food safety and secure logistics. An independent validation is requested for the original problem: A mirrored switch port drops packets during a peak traffic test and the analyst uses the incomplete capture as proof of no malicious traffic. Which result BEST demonstrates successful remediation?
Explanation
Correct Answer
Sensor health counters show complete or explicitly bounded capture coverage and conclusions acknowledge any gaps. The observable result demonstrates that the documented condition, A mirrored switch port drops packets during a peak traffic test and the analyst uses the incomplete capture as proof of no malicious traffic. has been addressed. The planned remediation is: Check mirror capacity, interface drops and alternate telemetry before drawing absence-of-evidence conclusions. This is a stronger validation than a saved ticket or unverified claim by Timberline Foods.
Incorrect Answers
The gateway IP maps to its authorized MAC and a controlled conflicting ARP advertisement is rejected and logged. That observation would verify another scenario: A network capture shows the same default-gateway IP address advertised by two different MAC addresses on an access VLAN. The corrective step for that other scenario is: Investigate potential ARP spoofing and enforce suitable ARP inspection with trusted DHCP bindings where supported. But Timberline Foods is evaluating: A mirrored switch port drops packets during a peak traffic test and the analyst uses the incomplete capture as proof of no malicious traffic. The necessary outcome is: Sensor health counters show complete or explicitly bounded capture coverage and conclusions acknowledge any gaps.
The port no longer causes widespread unknown-unicast flooding and MAC-table utilization returns to normal. That observation would verify another scenario: A switching team notices a sudden burst of new source MAC addresses from one user port, exhausting the normal table capacity. The corrective step for that other scenario is: Use supported port-security or MAC-limit controls and investigate the affected access port for abnormal frame sources. But Timberline Foods is evaluating: A mirrored switch port drops packets during a peak traffic test and the analyst uses the incomplete capture as proof of no malicious traffic. The necessary outcome is: Sensor health counters show complete or explicitly bounded capture coverage and conclusions acknowledge any gaps.
Validated clients resolve the service to the authorized destination and conflicting replies are detected or rejected. That observation would verify another scenario: DNS replies for a known internal service suddenly resolve to a foreign address although the authoritative zone has not changed. The corrective step for that other scenario is: Investigate resolver cache integrity and upstream DNS trust controls, then refresh affected cached results safely. But Timberline Foods is evaluating: A mirrored switch port drops packets during a peak traffic test and the analyst uses the incomplete capture as proof of no malicious traffic. The necessary outcome is: Sensor health counters show complete or explicitly bounded capture coverage and conclusions acknowledge any gaps.