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Two new network switches located in different buildings are connected together with single-mode fiber. However, no link exists between the two switches. Which of the following steps should the technician perform FIRST to troubleshoot the issue?
Correct Answer: C
The FIRST step the technician should perform to troubleshoot the issue is C. Clean the fiber patch cord connectors in both buildings. Dirty or contaminated fiber patch cord connectors can cause signal loss and poor network performance, and may even prevent a link from being established. Before trying any other troubleshooting steps, it is important to ensure that the fiber patch cord connectors are clean and free of debris.