Question 240
At the Willowford software engineering team, a user plugs an unmanaged bridge into a configured edge port and injects spanning-tree BPDUs. Which ongoing control best prevents this issue from recurring?
Explanation
Correct Answer
This control works beyond the initial remediation because it requires the team to review edge-port classification after topology changes.
Incorrect Answers
That routine supports storm control excessive broadcast, but the relevant ongoing risk requires the team to review edge-port classification after topology changes. For the Willowford software engineering team, the direct corrective action is to enable BPDU Guard on appropriate PortFast edge interfaces.
Review flow export coverage after adding network segments. That safeguard would help prevent recurrence of: Device health metrics do not identify talkers and traffic relationships. The risk being reviewed here is instead: Unexpected spanning-tree control frames on edge ports can disrupt topology. The matching ongoing control is: Review edge-port classification after topology changes.
Review rule exceptions and signature updates periodically is not the primary recurring safeguard for this problem. The team should review edge-port classification after topology changes. For the Willowford software engineering team, the direct corrective action is to enable BPDU Guard on appropriate PortFast edge interfaces.