A.routeADD172.168.0.0mask255.255.0.0192.168.1.1 B.routeADD172.168.0.0255.255.0.0192.168.1.1 C.routeADD172.168.0.0255.255.0.0mask192.168.1.1 D.route172.168.0.0mask255.255.0.0192.168.1.1
A.物理層B.網(wǎng)絡(luò)層C.數(shù)據(jù)鏈路層D.傳輸層
A.OSPF B.NLSP C.RIP D.BGP-4