单项选择题

下列软件中不能用于网络嗅探的是______。

A.Ethereal
B.MBSA
C.TCPdump
D.Wireshark
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单项选择题

在Cisco路由器的g0/1端口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access-list的正确配置是______。

A.Router(config)#access-list 70 deny 10.0.0.0 255.0.0.0Router(config)#access-list 70 deny 192.168.0.0 255.255.0.0Router(config)#access-list 70 deny 127.0.0.0 255.0.0.0Router(config)#access-list 70 deny 172.16.0.0 255.240.0.0Router(config)#access-list 70 permit anyRouter(config)#interface g0/1Router(config-if)#ip access-group 70 inRouter(config-if)#ip access-group 70 outRouter(config-if)#exitRouter(config)#
B.Router(config)#access-list 99 deny 10.0.0.0 0.255.255.255Router(config)#access-list 99 deny 192.168.0.0 0.0.255.255Router(config)#access-list 99 deny 127.0.0.0 0.255.255.255Router(config)#access-list 99 deny 172.16.0.0 0.15.255.255Router(config)#access-list 99 permit anyRouter(config)#interface g0/1Router(config-if)#ip access-group 99 inRouter(config-if)#ip access-group 99 outRouter(config-if)#exitRouter(config)#
C.Router(config)#interface g0/1Router(config-if)#ip access-group 30 inRouter(config-if)#ip access-group 30 outRouter(config-if)#exitRouter(config)#access-list 30 deny 10.0.0.0 0.255.255.255Router(config)#access-list 30 deny 192.168.0.0 0.0.255.255Router(config)#access-list 30 deny 127.0.0.0 0.255.255.255Router(config)#access-list 30 deny 172.16.0.0 0.15.255.255Router(config)#access-list 30 permit any
D.Router(config)#access-list 60 deny 10.0.0.0 0.255.255.255Router(Config)#access-list 60 deny 192.168.0.0 0.0.255.255Router(config)#access-list 60 deny 127.0.0.0 0.255.255.255Router(config)#access-list 60 deny 172.16.0.0 0.15.255.255Router(config)#access-list 60 permit anyRouter(config)#interface g0/1Router(config-if)#ip access-group 160 inRouter(config-if)#ip access-group 160 outRouter(config-if)#exitRouter(config)#
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