【简答题】● (71) In the strength of the carrier signal is varied to represent binary 1 or 0. (72) is a system that can map a name to an address and conversely an address to an name. (73) is a three-way handshak...
【单选题】In(66)the strength of the carder signal is varied to represent binary 1 or 0.(67)is a system that can map a name to an address and conversely an address to an name.(68)is a three-way handshaking authe...