单项选择题 Out of which port on Sw-Ac3 would a frame containing an IP packet with a destination address that is not on a local LAN be forwarded?（）

单项选择题 What interface did Sw-AC3 associate with source MAC address 0010.5a0c.ffba?（）

单项选择题 What address should be configured as the default-gateway for the host connected to interface Fa0/4 of Sw-AC3?（）