封禁ICMP协议，只转发212.78.170.166/27所在子网的所有站点的ICMP数据包，正确的access-list配置是______。

A:Router(config)#access-list 110 permit icmp 212.78.170.166 0.0.0.0 any B:Router(config)#access-list 110 deny icmp any any C:Router(config)#access-list 110 permit ip any any D:Router(config)#access-list 110 permit icmp 212.78.170.0 255.255.255.224 any E:Router(config)#access-list 110 permit ip any any F:Router(config)#access-list 110 deny icmp any any G:Router(config)#access-list 110 permit icmp 212.78.170.0 0.0.0.255 any H:Router(config)#access-list 110 deny icmp any any I:Router(config)#access-list 110 permit ip any any J:Router(config)#access-list 110 permit icmp 212.78.170。160 0.0.0.31 any K:Router(config)#access-list 110 deny icmp any any L:Router(config)#access-list 110 permit ip any any

封禁ICMP协议，只转发212.78.170.166/27所在子网的所有站点的ICMP数据包，正确的access-list配置是______。

A:Router(config)#access-list 110 permit icmp 212.78.170.166 0.0.0.0 any B:Router(config)#access-list 110 deny rcmp any any C:Router(config)#access-list 110 permit ip any any D:Router(config)#access-list 110 permit icmp 212.78.170.0 255.255.255.224 any E:Router(config)#access-list 110 permit ip any any F:Router(config)#access-list 110 deny icmp any any G:Router(config)#access-list 110 permit icmp 212.78.170.0 0.0.0.255 any H:Router(config)#access-list 110 deny icmp any any I:Router(config)#access-list 110 permit ip any any J:Router(config)#access-list 110 permit icmp 212.78.170.160 0.0.0.31 any K:Router(config)#access-list 110 deny icmp any any L:Router(config)#access-list 110 permit ip any any

封禁ICMP协议，只转发212.78.170.166/27所在子网的所有站点的ICM数据包，正确的access-list配置是（）。

A:Router(config)#access-list 110 permit icmp 212.78.170.166 0.0.0.0 any B:Router(config)#access-list 110 deny icmp any any C:Router(config)#access-list 110 permit ip any any D:Router(config)#access-list 110 permit icmp 212.78.170.0 255.255.255.224 any E:Router(config)#access-list 110 permit ip any any F:Router(config)#access-list 110 deny icmp any any G:Router(config)#access-list 110 permit icmp 212.78.170.0 0.0.0.255 any H:Router(config)#access-list 110 deny icmp any any I:Router(config)#access-list 110 permit ip any any J:Router(config)#access-list 110 permit icmp 212.78.170.160 0.0.0.31 any K:Router(config)#access-list 110 deny icmp any any L:Router(config)#access-list 110 permit ip any any

Cisco路由器执行show access-list命令显示如下一组控制列表信息
Standard IP access list 30
deny 127.0.0.0，wildcard bits 0.255.255.255
deny 172.16.0.0，wildcard bits 0.15.255.255
permit any
根据上述信息，正确的access-list配置是（）。

A:Router(config)#access-list 30 deny 127.0.0.0 255.255.255.0 B:Router(config)#access-list 30 deny 172.1 6.0.0 255.240.0.0 C:Router(config)#access-list 30 permit any D:Router(config-std-nacl)#access-list 30 deny 127.0.0.0 0.255.255.255 E:Router(config-std-nacl)#access-list 30 deny 172.16.0.0 0.15.255.255 F:Router(config-std-nacl)#access-list 30 permit any G:Router(config)#access-list 30 deny 127.0.0.0 0.255.255.255 H:Router(config)#access-list 30 deny 172.16.0.0 0.15.255.255 I:Router(config)#access-list 30 pemait any J:Router(config)#access-list 30 deny 127.0.0.0 0.255.255.255 K:Router(config)#access-list 30 permit any L:Router(config)#access-list 30 deny 172.16.0.0 0.15.255.255

封禁ICMP协议，只转发212.78.170.166/27所在子网的所有站点的ICMP数据包，正确的access-list配置是______。

A:Router (config) #access-list 110 permit icmp 212.78.170.166 0.0.0.0 any B:Router (config) #access-list 110 deny icmp any any C:Router (config) #access-list 110 permit ip any any D:Router (config) #access-list 110 permit icmp 212.78.170.0 255.255.255.224 any E:Router (config) #access-list 110 permit ip any any F:Router (config) #access-list 110 deny icmp any any G:Router (config) #access-list 110 permit icmp 212.78.170.0 0.0.0.255 any H:Router (config) #access-list 110 deny icmp any any I:Router (config) #access-list 110 permit ip any any J:Router (config) #access-list 110 permit icmp 212.78.170.160 0.0.0.31 any K:Router (config)) #access-list 110 deny icmp any any L:Router (config) #access-list 110 permit ip any any

只封禁一台地址为193.62.40.230主机的access-list的正确配置是（）。

A:access-list 110 permit ip any any
access-list 110 deny ip host 193.62.40.230 any
access-list 110 deny ip any host 193.62.40.230 B:access-list 110 deny ip host 193.62.40.230 any
access-list 110 deny ip any host 193.62.40.230
access-list 110 permit ip any any C:access-list 110 deny ip host 193.62.40.230 any
access-list 110 deny ip any host 193.62.40.230 D:access-list 110 deny ip host 193.62.40.230 any
access-list 110 permit ip any any
access-list 110 deny ip any host 193.62.40.230

只封禁一台IP地址为203.168.47.59主机的access-list的正确配置是______。

A:access-list 110 permit ip any any
access-list 110 deny ip host 203.168.47.59 any
access-list 110 deny ip any host 203.168.47.59 B:access-1ist 110 deny ip host 203.168.47.59 any
access-list 110 deny ip any host 203.168.47.59
access-list 110 permit ip any any C:access-list 110 deny ip host 203.168.47.59 any
access-list 110 deny ip any host 203.168.47.59 D:access-list 110 deny ip host 203.168.47.59 any
access-list 110 permit ip any any
access-list 110 deny ip any host 203.168.47.59

Cisco路由器执行show access-list命令显示如下一组控制列表信息：
Standard IP acceSS list 30
deny 127.0.0.0，wildcard bits 0.255.255.255
deny 172.16.0.0，wiidcard bits 0.15.255.255
permft any
根据上述信息，正确的access-list配置是（）。

A:Router(config)#access-list 30 deny 127.0.0.0 255.255.255.0
Router(config)#access-list 30 deny 172.16.0.0 255.240.0.0
Router(config)#access-list 30 permit any B:Router(config-std-nacl)#access-list 30 deny 127.0.0.0 0.255.255.255
Router(config-std-nael)#access-list 30 deny 172.16.0.0 0.15.255.255
Router(config-std-nacl)#access-list 30 permit any C:Router(config)#access-list 30 deny 127.0.0.0 0.255.255.255
Router(config)#access-list 30 deny 172.16.0.0 0.15.255.255
Router(config)#access-list 30 permit any D:Router(config)#access-list 30 deny 127.0.0.0 0.255.255.255
Router(config)#access-list 30 permit any
Router(config)#access-list 30 deny 172.16.0.0 0.15.255.255

封禁ICMP协议，只转发212.78.170.166/27所在子网的所有站点的ICMP数据包，正确的access-list配置是（）。

A:Router（config)#access-list 110 permit icmp 212.78.170.166 0.0.0.0 any   Router（config)#access-list 110 deny icmp any any   Router（config)#access-list 110 permit ip any any B:Router（config)#access-list 110 permit icmp 212.78.170.0 255.255.255.224 any   Router（config)#access-list 110 permit ip any any   Router（config)#access-list 110 deny icmp any any C:Router（config)#access-list 110 perimt iemp 212.78.170.0 0.0.0.255 any   Router（config)#access-list 110 deny icmp any any   Router（config)#access-list 110 permit ip any any D:Router（config)#access-list 110 permit icmp 212.78.170.160 0.0.0.31 any   Router（config)#access-list 110 deny icmp any any   Router（config)#access-list 110 permit ip any any