a$.$ This computer network covers a broad area $($e$.$g$.,$ includes any network whose communications links cross metropolitan, regional, or national boundaries over a long distance$).$

b$.$ The Internet is a good example of this type of network.

c$.$ This type of network often uses Layer $2$ devices like switches and bridges and Layer $1$ devices like hubs and repeaters.

d$.$ The purpose of this type of network is mainly for remote access.

e$.$ This type of network comprises of two fundamental architectural components: stations and access points.

f$.$ This type of network has a large geographical range generally spreading across boundaries and often need leased telecommunication lines.