[单选题]帧中继环境中,在物理端口上,建立子接口的命令是()
正确答案 :B
interface
[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]路由器上激活端口的命令是()
正确答案 :B
no shutdown
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