更多"[判断题]传统总线型以太网的核心技术是CSM"的相关试题:
[单选题]总配电箱总路设置的漏电保护器必须是三极四线型产品。();
A.正确;
B.错误;
[单选题]CSMA, although more efficient than ALOHA or slotted ALOHA, still has one glaring inefficiency. If the medium is busy, the station will wait for a random amount of time. When two frames collide, the medium remains （ ） for the duration of transmission of both damaged frames. The use of random delays reduces the probability of（请作答此空）. For（ ）frames, compared to propagation time, the amount of wasted capacity can be considerable. This waste can be reduced if a station continues to listen to the medium while（ ）.The maximum utilization depends on the length of the frame and on the（ ） time; the longer the frames or the shorter the propagation time，the higher the utilization.
A.transmission
B.collisions
C.transportation
D.reception
