多项选择题
Which router IOS commands can be used to troubleshoot LAN connectivity problems?（）
A.ping B.tracert C.ipconfig D.show ip route E.winipcfg F.show interfaces
多项选择题 Which of the following are benefits of VLANs?（）
多项选择题 Given a subnet mask of 255.255.255.224, which of the following addresses can be assigned to network hosts?（）
多项选择题 Which of the following host addresses are members of networks that can be routed across the public Internet?（）
