单项选择题
assuming the default switch configuration which vlan range can be added modified and removed on a cisco switch?（）
A.2 through 1001 B.1 through 1001 C.1 through 1002 D.2 through 1005
多项选择题 Which two link protocols are used to carry multiple VLANs over a single link? （）
单项选择题 Refer to the exhibit. Why has this switch not been elected the root bridge for VLAN1?（）
单项选择题 Why will a switch never learn a broadcast address?（）
