Which of the following is MOST likely the cause of the desktop not connecting?

A network technician is investigating an issue with a desktop that is not connecting to the network. The desktop was connecting successfully the previous day, and no changes were made to the environment. The technician locates the switchport where the device is connected and observes the LED status light on the switchport is not lit even though the desktop is turned on Other devices that arc plugged into the switch are connecting to the network successfully.

Which of the following is MOST likely the cause of the desktop not connecting?
A . Transceiver mismatch
B . VLAN mismatch
C . Port security
D . Damaged cable
E . Duplex mismatch

View Answer

Answer: D

Explanation:

A damaged cable is most likely the cause of the desktop not connecting to the network. A damaged cable can cause physical layer issues such as loss of signal, attenuation, interference, or crosstalk. These issues can prevent the desktop from establishing a link with the switch and result in the LED status light on the switchport being off. Other possible causes of physical layer issues are faulty connectors, ports, or transceivers.

Reference: https://www.cisco.com/c/en/us/support/docs/lan-switching/ethernet/14119-37.html