$1$Protocol layering is the main structuring

method used to divide up network

functionality.

Mobile phone network is based on

spatial cells where each cell provides

wireless service to mobiles within it via a

base station.

As mobiles move, base stations hand

them off from one cell to the next, and the

network tracks their location, this is known

as network grooming.An ISP $($Internet Service Provider$)$Protocol layering is the main structuring

method used to divide up network

functionality.

Mobile phone network is based on

spatial cells where each cell provides

wireless service to mobiles within it via a

base station.

As mobiles move, base stations hand

them off from one cell to the next, and the

network tracks their location, this is known

as network grooming.

network is an example of a Local Area

Network.

Companies use networks and computers

for resource sharing with the client$-$server

model.

A VPN $($Virtual Private Network$)$ is a

WAN built from virtual links that run on top

of the Internet.