多项选择题 Which two BGP attributes are incorporated for loop prevention within an AS using a route reflection configuration? （）

单项选择题 Which configuration command places interfaces whose IP addresses are between 192.168.0.0 and 192.168.255.255 into OSPF area 0?（）

单项选择题 You would like to view all Fast Ethernet interfaces currently using VLAN tagging and the specific VLANs each interface is using. Which CLI command displays this information?（）