If a technician finds that the link light on a workstation is not lit after replacing the patch cable, which tool would they most likely use next to troubleshoot the issue?

The most logical tool for troubleshooting the issue of a non-lit link light after replacing the patch cable is a cable tester. This tool is specifically designed to check the integrity of network cables, including confirming that the connections are properly made and that there are no breaks or shorts in the wiring. By using a cable tester, the technician can determine if the new patch cable is functioning correctly or if it may be defective.

While a network analyzer could provide insight into network traffic and performance, it is not the most direct tool for diagnosing a physical connection issue at this stage. A toner generator is typically used for identifying and tracing cables within a network rather than testing cable integrity. A multimeter can measure electrical values but is not commonly used for diagnosing network cables, as it cannot assess connectivity in the same way that a cable tester does.

The immediate concern is to verify the functionality of the newly installed patch cable, making the cable tester the best choice for this situation.