Different network devices function at different network communication layers, depending on their purpose. Using the TCP/IP model, identify the highest layer accessed by each of the following devices:

a. Router
b. Unmanaged switch
c. Wireless access point
d. Firewall

The highest layer accessed by each of the following devices are:-

Router: Network/internet  layer.

Unmanaged switch: Application layer

Wireless access point:Application layer

Firewall: Transport layer and the Network layer

Explanation:

TCP/IP stands for Transmission Control Protocol/ Internet Protocol

The TCP/IP networking model has four layers, namely,

these  signals travel  down a part of the neuron called the axon, which is like a wire that carries the  signal  to othernerve  cells. on average a  nerve  cell sends a  signal  at about 50 meters per second, which is over 100  miles  an hour!

solution:

this situation is called an ip conflict.

data from a server is sent in small bits called packets. in an ip conflict, some packets will end up in one computer while some other packets will end up in another computer.

so…overall none of the computers get the data as the original message or picture being sent by the server cannot be retrieved with only half the packets. so it will show up as an error.

thus the final answer is d.