N10-009: CompTIA Network+ Certification Exam

By CompTIA · Question Mode

QuestionQ18

Network Troubleshooting

A customer lost the connection to the telephone system. The administration console is configured with multiple network interfaces and is connected to multiple switches. The network administrator troubleshoots and verifies the following:

The support team is able to connect remotely to the administration console.

Rebooting the switch shows solid link and activity lights even on unused ports.

Rebooting the telephone system does not bring the system back online.

The console is able to connect directly to individual modules successfully.

Which of the following is the most likely reason the customer lost the connection?

Explanation

A switch that shows solid link and activity lights on ports that have nothing connected is a classic symptom of a failing switch, and the fact that the console can connect successfully when plugged directly into the individual modules (bypassing the switch entirely) confirms the modules themselves are healthy, ruling out a module failure. Rebooting the telephone system also had no effect, which is consistent with the fault being upstream in the switch rather than in the phone system or its modules.

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