PPP concept confusion different resources

[zillah]

We have all these types of point-to-point

1- Point-to-Point Access PPP.(Frouzan Book)

2- Point-to-Point Protocol PPP.(Frouzan Book data communication and network)


3- Point-to-Point Link. (William Stalling book data and computer communicati
ons)

4- Point-to-Point connection (Frouzan Book)

Point-to-Point connection: Between each pair of devices (a mesh topology). f
rouzan book

and in another place he said:
((it provides a dedicated link between two devices. The entire capacity of t
he link is reserved for transmission bewteen those two devices. Most point-t
o-point connections use an actual length of wire or cable to connect the two
ends-----etc)).

My quesry does that mean point-to-point only for dedicated physiacl cable? D
oes this connection popular?


Again to Frouzan Book chapter 12

((In a network, two device can be connected by a dedicated link or a shared.
In the first case, -----we refer to this type of access point-to-point acce
ss. In second cases, the link is shared between pairs of devices that need t
o use the link. We refer to this type of access as multiple access)).


Does that mean point-to-point access is same as point-to-point link and poin
t-to-point connection ?

Thanks

 

[shouup]

point to point can be logical or physical.