Answer:
Step-by-step explanation:
If the indicated network switch port has no glowing green LED then that switch port is either off or failing. This can sometimes happen even with newly replaced switches. In this case Carlos should first check to make sure that the switch port is properly installed. If so, then he should switch the port for a new one. If the LED light turns on and is still not green, then it may be an error with a faulty cable, and in this case Carlos should replace the cable with a new one, which should solve the issue.