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【单选题】

在一台Cisco路由器的g3/1上,禁止源地址为某些特定地址段的数据包进出路由器,下列正确的access-list配置是______。

A.
Router(config)#ip access-list standard nonaddreRouter(config-std-nacl)#deny 10.0.0.0 255.0.0.0Router(config-std-nacl)#deny 192.168.0.0 255.255.0.0Router(config-std-nacl)#deny 127.0.0.0 255.0.0.0Router(config-std-nacl)#deny 172.16.0.0 255.240.0.0Router(config-std-nacl)#permit anyRouter(config-std-nacl)#exitRouter(config)#intece g3/1Router(config-if)#ip access-group nonaddre inRouter(config-if)#ip access-group nonaddre out
B.
Router(config)#ip access-list extended nonaddreRouter(config-std-nacl)#deny 10.0.0.0 0.255.255.255Router(config-std-nacl)#deny 192.168.0.0 0.0.255.255Router(config-std-nacl)#deny 127.0.0.0 0.255.255.255Router(config-std-nacl)#deny 172.16.0.0 0.15.255.255Router(config-std-nacl)#exitRouter(config)#intece g3/1Router(coufig-if)#ip access-group nonaddre inRouter(config-if)#ip access-group nonaddre out
C.
Router(config)#intece g3/1Router(config-if)#ip access-group nonaddre inRouter(config-if)#ip access-group nonaddre outRouter(config-if)#exitRouter(config)#ip access-list standard nonaddreRouter(config-std-nacl)#deny 10.0.0.0 0.255.255.255Router(config-std-nacl)#deny 192.168.0.0 0.0.255.255Router(config-std-nacl)#deny 127.0.0.0 0.255.255.255Router(config-std-nacl)#deny 172.16.0.0 0.15.255.255Router(config-std-nacl)#permit mayRouter(config-std-nacl)#exit
D.
Router(config)#ip access-list standard nonaddreRouter(config-std-nacl)#deny 10.0.0.0 0.255.255.255Router(config-std-nacl)#deny 192.168.0.0 0.0.255.255Router(config-std-nacl)#deny 127.0.0.0 0.255.255.255Router(config-std-nacl)#deny 172.16.0.0 0.15.255.255Router(config-std-nacl)#permit anyRouter(config-std-nacl)#exitRouter(config)#intece g3/1Router(config-if)#ip access-group nonaddre inRouter(config-if)#ip access-group nonaddre out
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举一反三

【多选题】低端路由器APP的升级方法有()

A.
使用串口Xmodem
B.
使用TFTP升级
C.
使用FTP升级

【单选题】用标准访问控制列表禁止非法地址192.168.0.0/16的数据包进出路由器的正确配置是______。

A.
access-list 110 deny 192.168.0.0 0.0.255.255
B.
access-list 110 permit any
C.
B.access-list 10 deny 192.168.0.0 255.255.0.0
D.
access-list 10 permit any
E.
C.access-list 50 permit any
F.
access-list 50 deny 192.168.0.0 0.0.255.255
G.
D.access-list 99 deny 192.168.0.0 0.0.255.255
H.
access-list 99 permit any