Which network device functions only at Layer 1 of the OSI model?
A.
Option A
B.
Option B
C.
Option C
D.
Option D
E.
Option E
Explanation:
Most hubs are amplifying the electrical signal; therefore, they are really repeaters with several
ports. Hubs and repeaters are Layer 1 (physical layer) devices.
where does the nic fit in on the osi model layers
Remember that if the device uses MAC addresses then it’s Layer 2. As the explanation says that hubs and repeaters just amplify the signal they do not logically work with mac addresses. More or less just act as fire and forget.
Layer 2.