What is the distinction between broadcast links and point-to-point links? In the paragraph below, the author switches between "broadcast link" and "broadcast network" which is causing my confusion..is there a distinction between a "broadcast network" and a "broadcast link"? The word 'link' to me implies a physical link.
Does a broadcast network consist of point-to-point links?
Can a network be made of up of point-to-point links and broadcast links?
Broadly speaking, there are two types of transmission technology that are in widespread use: broadcast links and point-to-point links. Point-to-point links connect individual pairs of machines. To go from the source to the destination on a network made up of point-to-point links, short mes- sages, called packets in certain contexts, may have to first visit one or more inter- mediate machines. Often multiple routes, of different lengths, are possible, so finding good ones is important in point-to-point networks. Point-to-point transmission with exactly one sender and exactly one receiver is sometimes called unicasting.
In contrast, on a broadcast network, the communication channel is shared by all the machines on the network; packets sent by any machine are received by all the others.
-- From, Computer Networks - A. Tanenbaum