List four differences between wireless networks and networks that use physical media like wires or cables.

What will be an ideal response?

The IEEE has documented the differences, noting that wireless networks:
·      Use a method of signaling that does not have readily observable boundaries, requiring special equipment to discern where the signal is present or where it is not
·      Are susceptible to signals that come from other devices that are not part of the network as planned or built but that share the wireless medium being used
·      Operate using a medium that is less reliable than a wired medium
·      Often use dynamic topologies in which the number or even the nature of the devices being networked changes often and with little or no notice
·      May lack full connectivity among nodes and invalidate the assumptions made about networking station visibility
·      Operate in environments in which signal propagation is less certain and in which signal timing and symmetry may be unverifiable
·      Are subject to interference from other networks when the signal area overlaps, even when the other networks are conforming to standards