Answer:
A signal has a wavelength of 1 μm in air
Explanation:
looked it up
Answer:
Device B is Router.
Explanation:
Router is the device that is used to connect different networks to communicate with each other to make possible for all devices of all networks to communicate with each other that are connected to that particular network.
In above case, Device A is 8 port switch that makes a network of 8 different computers. Device C is a 4 port hub that is connected with 4 computers. Both Device A and Device C are different Networks, router is used to connect both all devices of both networks so that they can communicate each other. So the Device B should be router.
It should be compiled. It won't work if it's not compiled.
