CompTIA
N10-005 · Question #209
If a NIC does not have a link light, there is a failure at which of the following OSI layers?
The correct answer is A. Physical. The NIC does not have light refers to a situation that there could be a fault in the LAN cable or the ports are down and all of these fall under the physical layer. To make it simple, it falls in physical layer because blinking lights refers to the physical connectivity.
Network troubleshooting
Question
If a NIC does not have a link light, there is a failure at which of the following OSI layers?
Options
- APhysical
- BSession
- CData link
- DPresentation
How the community answered
(35 responses)- A94% (33)
- B3% (1)
- C3% (1)
Explanation
The NIC does not have light refers to a situation that there could be a fault in the LAN cable or the ports are down and all of these fall under the physical layer. To make it simple, it falls in physical layer because blinking lights refers to the physical connectivity.
Topics
#link light#NIC#OSI layer 1#physical layer
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