单项选择题

某校园网采用RIPv1路由协议，通过一台Cisco路由器R1互连2个子网，地址分别为213.38.56.0和213.33.56.128，掩码为255.255.255.128，并要求过滤g0/1接口输出的路由更新信息。那么R1正确的路由协议配置是

A．Router(config) # access-list 12 deny anyRouter(config) # router ripRouter(config-router) # distribute-list 12 in g0/1Router(config-router) # network 213.33.56.0
B．Router(config) # router ripRouter(config-router) # passive-interface g0/1Router(config-router) # network 213.33.56.0 255.255.255.128Router(config-router) # network 213.33.56.128 255.255.255.128
C．Router(config) # router ripRouter(config-router) # passive-interface g0/1Router(config-router) # network 213.33.56.0
D．Router(config) # passive-interface g0/1Router(config) # router ripRouter(config-router) # network 213.33.56.0

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单项选择题为交换机端口指定VLAN的配置命令是

A．Switch(config-if) # vlan-menbership static
B．Switch(config-if) # vlan database
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单项选择题在某台Cisco路由器中定义了一个名为test的DHCP地址池(192.168.3.0 26)，并保留192.168.3.62 29的IP地址，下列正确的配置语句是

A．Router(config) # ip dhcp pool testRouter(dhcp-config) # network 192.168.3.0 0.0.0.63Router(dhcp-config) # ip dhcp excluded-address 192.168.3.62
B．Router(config) # ip dhcp pool testRouter(dhcp-config) # network 192.168.3.0 255.255.255.192Router(dhcp-config) # ip dhcp excluded-address 192.168.3.62 255.255.255.254
C．Router(config) # ip dhcp pool testRouter(dhcp-config) # network 192.168.3.0/26Router(dhcp-config) # ip dhcp excluded-address 192.168.3.62/29
D．Router(config) # ip dhcp pool testRouter(dhcp-config) # network 192.168.3.0/26Router(dhcp-cofnig) # exitRouter(config) # ip dhcp excluded-address 192.168.3.56 192.168.3.62