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[学习交流] CCNA640-802 V13题库试题分析34(艾迪飞吴老师讲解)

本主题由 bengyaju 于 2007-12-18 22:36 设置高亮

CCNA640-802 V13题库试题分析34(艾迪飞吴老师讲解)

1.  Refer to the exhibit. What is the purpose of the configuration that is shown?

 [attach]***[/attach]

A.      to translate addresses of hosts on the fa0/0 and fa0/1 networks to a single public IP address for Internet access

B.      to translate the internal address of each host on fa0/0 and fa0/1 to a unique external IP address for Internet acces

C.      to provide security on fa0/0 and fa0/1 through the application of an access list

D.     to allow IP hosts on the Internet to initiate TCP/IP connections to hosts on fa0/0 and fa0/1

Answer: A

解释一下:因为Ineternal Router f0/0 f0/1的接口连接的网络所使用的都是私有地IP地址,为了能让这些网络能和外网通讯,就需要把这些地址转换为可以与外部通讯的公有地址,因此在这些接口做了一个NAT的地址转换,将f0/0 f0/1的网络的地址都转换为s0/0的地址,而s0/0的地址是公有的地址,这样拥有私有地址的网络也可以和外部进行通讯了

 

 

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