单选题
A local-area network (LAN) is a communications network that (125) a variety of devices and provides a (126) for information exchange among those devices. The scope of the LAN is small typically a single building or a cluster (丛) of buildings. The LAN is usually owned by the same organization that owns the (127) devices. The internal data rate of LAN is at least several Mb/s. The basic of LAN communication is broadcasting. At each station, there is a transmitter/receiver that communicates over a (128) shared, By other stations. A transmission from any one station is (129) to and received by all other stations.
单选题
A. broadcast B. cable C. control D. interconnects E. internet F. meander G. means H. medium I. modem J. output switch relay
【正确答案】
D
【答案解析】
单选题
A. broadcast B. cable C. control D. interconnects E. internet F. meander G. means H. medium I. modem J. output switch relay
【正确答案】
G
【答案解析】
单选题
A. broadcast B. cable C. control D. interconnects E. internet F. meander G. means H. medium I. modem J. output switch relay
【正确答案】
B
【答案解析】
单选题
A. adopted B. attached C. selected D. unified
【正确答案】
【答案解析】
单选题
A. broadcast B. cable C. control D. interconnects E. internet F. meander G. means H. medium I. modem J. output switch relay