When troubleshooting a network failure, which layer of the Open System Interconnection (OSI) is faulty when you do not receive a link light on he NIC?
A.
application
B.
physical
C.
data
D.
network
Explanation:
The Physical layer defines all the electrical and physical specifications for devices. In particular, it defines the relationship between a device and a physical medium. This includes the layout of pins, voltages, and cable specifications.