● 路由器端口的 IP地址为 202.100.73.18/22，则该端口的网络地址是 （27） 。 （27）A. 202.100.73.0 B

R2(config)interface fastethernet 0／0．1

R2(config—subif)encapsulation dotl q(3)

R2(config—subif)ip address 202．1 14．12．1 255．255．255．192

R2 f config—subif)no shutdown

R2(config—subif)exit

R2(config)interface fastethemet 0／0．2

R2(config—subif)encapsulation dotlq(4)

R2(config—subif)ip address 202．1 14．12．65 255．255．255．192

R2(config—subif)no shutdown

R2(eonfig—subif)exit

R2(config)interface fastethernet 0／0．3

R2(config—subif)encapsulation dotl q(5)

R2(eonfig—subif)ip address 202．1 14．12．129 255．255．255．192

R2(eonfig—subif)no shutdown

R2(config—subif)exit

R2(eonfig)interface fastether0／0

R2(config—if)no shutdown

Switch0(~onfig)interface f0／24

Switch0(config—if)switchport mode(6)

Switch0(config—if)switchport trunk encapsulation(7)

Switch0(config—if)switehpoa trunk allowed all

Switch0(config—if)exit

A.202.100.72.0

B.202.100.128.0

C.202.100.70.0

D.202.100.73.0

路由器端口的IP地址为202.100.73.18/22，则该端口的网络地址是 ______ 。

A．202.100.73.0

B．202.100.70.0

C．202.100.128.0

D．202.100.72.0

A.202.100.70.0

B.202.100.73.0

C.202.100.72.0

D.202.100.128.0

A.202.100.73.0

B.202.100.70.0

C.202.100.128.0

D.202.100.72.0

A.202.100.73.0

B.202.100.70.0

C.202.100.128.0

D.202.100.72.0

A.255

B.0

C.200

D.100

A.202.100.73.0

B.202.100.70.0

C.202.100.128.0

D.202.100.72.0

A.64

B.92

C.94

D.126

某路由器端口的IP地址为172.16.18.168/22，则该p地址所在网络的直接广播地址是(28)。

A．172.16.18.175

B．172.16.18.255

C．172.16.19.0

D．172.16.19.255