[单选题]LAN端口利用率=LAN端口实占容量÷()LAN端口容量×100%。A . LAN端口空闲容量B . LAN端口容量C . ONU端口容量
[单选题]________________ is introducing Auld Lang Syne to us.A. Robert Bums. B. The Washington Saxophone Quartet.C. Buddy Thomas. D. The passage doesn’t tell us.
[单选题]通过LAN上网属于()。A . 使用模拟信号来传递模拟数据B . 使用数字信号来传递数字数据C . 使用模拟信号来传递数字数据D . 使用数字信号来传递模拟数据
[单选题]In the Ethernet LAN,an algorithm was chosen to dynarnically adapt to the number of stations trying to senD.It is called (71) .(71) A.backward learningB.binary exponential backoffC.spanning treeD.CRC