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N10-009 · Question #106

N10-009 Question #106: Real Exam Question with Answer & Explanation

The correct answer is C: A cable was looped and created a broadcast storm.. The symptoms, including high CPU usage and rapidly blinking switch lights, are most likely due to a cable loop in the network causing a broadcast storm, which is overwhelming network resources and disrupting connectivity.

Submitted by ravi_2018· Mar 6, 2026Network Troubleshooting

Question

A customer calls the help desk to report that users are unable to access any network resources. The issue started earlier in the day when an employee rearranged the wiring closet. A technician goes to the site but does not observe any obvious damage. The statistics output on the switch indicates high CPU usage, and all the lights on the switch are blinking rapidly in unison. Which of the following is the MOST likely explanation for these symptoms?

Options

  • AThe switch was rebooted and set to run in safe mode.
  • BThe line between the switch and the upstream router was removed.
  • CA cable was looped and created a broadcast storm.
  • DA Cat 6 cable from the modem to the router was replaced with Cat 5e.

Explanation

The symptoms, including high CPU usage and rapidly blinking switch lights, are most likely due to a cable loop in the network causing a broadcast storm, which is overwhelming network resources and disrupting connectivity.

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