In RANDOM access or contention METHODS, no station is superior to another station and none is ASSIGNED the control over another. No station permits, or does not permit, another station to send. In a random access method, each station has the right to the medium without being controlled by any other station. There is no scheduled time for a station to transmit. Transmission is random among the stations. That is why these methods are called random access. ALSO, no rules specify which station should send next. Stations compete with one another to access the medium. That is why these methods are also called contention methods. Protocols in this category : ALOHA, CSMA, CSMA/CD, CSMA/CA.Define controlled access and list three protocols in this category. In controlled access, the stations consult one another to find which station has the right to send. A station cannot send unless it has been authorized by other stations. Protocols in this category: reservation, polling, token passing.Define CHANNELIZATION and list three protocols in this category. Channelization is a multiple-access method in which the available bandwidth of a link is shared in time, frequency, or through code, between different stations. Protocols in this category: FDMA, TDMA, and CDMA....