多项选择题
A. Shared B. Point-to-Point C. Designated D. Multiaccess non-broadcast
A.GLBP B.RSTP C.BPDU guard D.root guard
A. Disables the interfaces to prevent traffic flow B. Clears all the configurations on the interface C. Switches the port from access mode to trunk mode D. Converts the port from physical Layer 2 port to physical Layer 3 port