155) In a
________,
one station transmits signals, which travel in both directions along a single transmission segment.
156) ________ span broad geographical distances–entire regions, states, continents, or the entire globe.
157) A ________ is a network that spans a metropolitan area, usually a city and its major suburbs. Its geographic scope falls between a WAN and a LAN.
158) ________ consists of strands of copper wire twisted in pairs and is an older type of transmission medium.
159) ________, similar to that used for cable television, consists of thickly insulated copper wire, which can transmit a larger volume of data than twisted wire.
160) ________
consists of bound strands of clear glass fibre, each the thickness of a human hair.
161) The range of frequencies that can be accommodated on a particular telecommunications channel is called its ________.
162) ________ systems, both terrestrial and celestial, transmit high-frequency radio signals through the atmosphere and are widely used for high-volume, long-distance, point-to-point communication.
163) An ________ is a commercial organization with a permanent connection to the Internet that sells temporary connections to retail subscribers.
164) ________ technologies operate over existing telephone lines to carry voice, data, and video at transmission rates ranging from 385 Kbps all the way up to 9 Mbps.