A.255.255.255.0
B.255.255.254.0
C.255.255.252.0
D.255.255.0.0

A.10Mbps
B.11Mbps
C.54Mbps
D.100Mbps

A.點(diǎn)到點(diǎn)
B.廣播多路訪問(wèn)
C.非廣播多路訪問(wèn)
D.非廣播多點(diǎn)
E.廣播點(diǎn)到多點(diǎn)

A.ARP
B.FTP
C.RARP
D.ICMP
E.IGMP

A.192.168.19.0 255.255.255.0
B.192.168.19.33 255.255.255.240
C.192.168.19.26 255.255.255.248
D.192.168.19.31 255.255.255.248
E.192.168.19.34 255.255.255.240

A.172.16.36.0
B.172.16.48.0
C.172.16.64.0
D.172.16.0.0

A.32768
B.23571
C.128
D.1
E.256

A.10.32.254.254
B.10.32.255.254
C.10.63.255.254
D.10.63.255.255

A.erase vlan20
B.clear vlan20
C.delete vlan20
D.no vlan20

A、255.255.255.0
B、255.255.255.128
C、255.255.255.192
D、255.255.255.224