在 Linux 操作系统中，可以通过修改______文件对DNS 搜索顺序及DNS 服务器的地址进行配置。A．inet.

只封禁一台地址为192.168.1.230主机的access-list正确配置是 (5) 。 A．access-list 110 permit中anyany access-list 110 deny中host 192.168.1.230 any access-list 110 deny ip anyhost 192.168.1.230

B．access-list 110 deny中host 192.168.1.230 any access-list 110 deny中any host 192.168.1.230 access-list 110 permit ip anyany

C．access-list 110 deny ip host 192.168.1.230 any access-list 110 deny ip any host 192.168.1.230

D．access-list 110 deny ip host 192.168.1.230 any access-list 110 permit ip anyany access-list 110 deny ip any host 192.168.1.230

只封禁一台IP地址为203.168.47.59主机的access-list的正确配置是(41) 。

A．access-list 110permit ip any any access-list 110deny ip host 203.168.47.59 any access-list 110deny ip any host 203.168.47.59

B．access-list 110deny ip host 203.168.47.59any access-list 110deny ip any host 203.168.47.59 access-list 110permit ip any any

C．access-list 110deny ip host 203.168.47.59 any access-list 110deny ip any host 203.168.47.59

D．access-list 110deny ip host 203.168.47.59 any access-list 110permit ip any any access-list 110deny ip any host 203.168.47.59

（22 ）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 193.62.40.230any 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 193.62.40.230any 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

在Cisco路由器上，用扩展访问控制列表封禁IP地址为211.102.33.24的主机，正确的配置语句是______。

A．access-list 99 deny ip host 211.102.33.24 any access-list 99 deny ip any host 211.102.33.24 access-list 99 permit ip any any

B．access-list 100 permit ip any any access-list 100 deny ip host 211.102.33.24 any access-list 100 deny ip any host 211.102.33.24

C．access-list 199 deny ip host 211.102-33.24 any access-list 199 deny ip any host 211.102.33.24 access-list 199 permit ip any any

D．access-list 166 deny ip host 211.102.33.24 any access-list 166 permit ip any any

只封禁一台地址为193．62．40．230主机的access-1ist的正确配置是（）。

A.acess-list 110permit ip any anyaccess-list 110 deny ip host 193．62．40．230 anyaccess-list 110 deny ip any host 193．62．40．230

B.access-list 110 deny ip host 193．62．40．230anyaccess-list110 deny ip any host 193．62．40．230access-list 110 permit ip any any

C.access-list 110 deny ip host 193．62．40．230 anyaccess-list110 deny ip any host 193．62．40．230

D.access-list 110 deny ip host 193．62．40．230 anyaccess-fist 110permit ip any anyaccess-list 110 deny ip any host 193．62．40．230

用标准访问控制列表封禁非法地址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 access-list 110 permit any

B.access-list 10 deny 192.168.0.0 255.255.0.0 access-list 10 permit any

C.access-list 50 permit any access-list 50 deny 192.168.0.0 0.0.255.255

D.access-list 99 deny 192.168.0.0 0.0.255.255 access-list 99 permit 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 1 10 deny ip any host 193．62．40．230

B．access—list 110 denv 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

A．

B．

C．

D．

A.A

B.B

C.C

D.D