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 17

admin2012-01-12  42

问题 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

选项 A、 
B、 
C、 
D、 

答案C

解析
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