阅读以下说明,画答问题1至问题4,将解答填入答题纸对应的解答栏内。
【说明】
某公司网络拓扑结构如图2-1所示,DNS服务器采用Windows Server 2003操作系统,当在本地查找不到域名记录时转向域名服务器210.113.1.15进行解析;Web服务器域名为 www.product.com.cn,需要CA颁发数字证书来保障网站安全。

在DNS服务器中为Web服务器配置域名记录时,区域名称和新建主机分别如图2-2和2-3所示

【问题4】(13分)
在PC1上使用nslookup命令查询Web服务器域名所对应的IP地址,得到如图2-5所示的结果

依据图2-1和图2-5显示结果,填写图2-6中PC1的Internet属性参数

IP地址: (5) ;
子网掩码: (6);
默认网关: (7):
首选DNS服务器:(8);
备用DNS服务器:(9)。
出现图2-5所示结果时,在PC1中进行域名解析时最先查询的是(10),其次查询的是(11),PC1得到的结果来自(12)。
正确答案及解析
正确答案
解析
202. 201.117.1
255.255.255.128
202. 201. 117.126
202. 201. 117.253
8.8.8.8/8.8.8.8
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