[单选题]You want to upgrade the Ezonexam LAN so that all ports operate in full duplex mode. Which statement is true about full-duplex Ethernet when comparing to half-duplex Ethernet?

正确答案 ：C

Full-duplex Ethernet can provide higher throughput than can half-duplex Ethernet of the same bandwidth

[单选题]How can a Ezonexam administrator determine if a router has been configured when it is first powered up?

正确答案 ：C

An un configured router goes into the setup dialog

解析：解析：Explanation:

[单选题]路由器“特权模式”的提示符是：（）

正确答案 ：B

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