A.255.255.240 B.255.255.248.0 C.255.255.254.0 D.255.255.255.0
A、CDP B、HSRP C、TFTP D、TELNET
A.255.255.255.0 B.255.255.254.0 C.255.255.252.0 D.255.255.0.0
A.創(chuàng)建vlan20的接口 B.指定vlan20的流量不能被打標(biāo)記 C.阻止vlan20的流量在干道通過 D.所有未打標(biāo)記的流量都默認指定為vlan20
A.RIP B.BGP C.OSPF D.EIGRP