Which of the following are true of Ethernet te
问题详情
Which of the following are true of Ethernet technology？
A．Hosts use a logical ring topology.
B．Hosts use a logical bus topology
C．Hosts must wait for an electronic signal to transfer data.
D．Hosts are directly connected to a wiring concentrator called a MSAU.
E．None of the above请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：B
解析：Explanation:LANtopologiesdefinethemannerinwhichnetworkdevicesareorganized.FourcommonLANtopologiesexist:bus,ring,star,andtree.Thesetopologiesarelogicalarchitectures,buttheactualdevicesneednotbephysicallyorganizedintheseconfigurations.Logicalbusandringtopologies,forexample,arecommonlyorganizedphysicallyasastar.AbustopologyisalinearLANarchitectureinwhichtransmissionsfromnetworkstationspropagatethelengthofthemediumandarereceivedbyallotherstations.OfthethreemostwidelyusedLANimplementations,Ethernet/IEEE802.3networks,including100BaseT,implementabustopology,whichisillustratedinFigure2-3.Somenetworksimplementalocalbustopology.
