The ________ is designed for use between local area networks that use
identical protocols for the physical and link layers and, because the devices all use
the same protocols, the amount of processing here is minimal.
Answer:
In the ________ scheme, a binary 0 is represented by no line signal and a binary 1 is
represented by a positive or negative pulse. The binary 1 pulses must alternate in
polarity.
Answer:
With ________ multiplexing data from various sources are carried in repetitive frames.
Answer:
The time variation of received signal power caused by changes in the transmission
medium is referred to as ________, which is a major technical problem for cellular
networks.