题目内容:
Cisc0路由器执行show access.1ist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,wildeard 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
Router(config)#aceess-list 30 deny 172.16.0.0 255.240.0.0
Router(config)#access-list 30 permit any
B.Router(config-std-nael)#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-nael)#access-list 30 permit any
C.Router(config)#aecess-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)#aecess-list 30 deny 172.16.0.0 0.15.255.255
参考答案:
答案解析: