DNS服务逆向试题

时间:2020-10-27 15:27:15 笔试题目 我要投稿

DNS服务逆向试题

问题:
You are the administrator of PConline's network. You configure a Windows 2000 Server computer as the DNS server for your network. You create both standard primary forward lookup and reverse lookup zones.You discover that when you use the nslookup utility, you cannot resolve host names from IP addresses on your network. You also discover that when you run the Tracert.exe utility, you receive the following error message. "Unable to resolve target system name."

DNS服务逆向试题


What should you do?

A. Configure the DNS to forward requests to an external DNS
B. Install a WINS server and configure DHCP to issue the IP address of the WINS server to all DHCP clients
C. Create PTR (pointer) records in your reverse lookup zone
D. Copy the systemroot\system32\dns\cache\samples\cache.dns to systemroot\system32\dns\cache\cache.dns

Select the 1 best answer

  作为一名PConline的网络管理员,你配置了一台Windows 2000 Server作为企业网络的DNS服务器。你创建了标准主区域的正向查找与逆向查找,但你发现当你在局域网络中使用nslookup命令行时,不能够将IP地址解析为主机名称,而当你使用Tracet.exe命令时,收到了这样的'提示“Unable to resolve target system name.”

解答:

  Tracert 命令是用来检查通往远程系统的路由状况的,它必需将主机名解析为IP地址以及将IP地址解析为主机名来运行,如果tarcert不能够工作,看起来很像是反向查找机制没有工作的原因。

  Nslookup命令行使用逆向查找来查询并返回主机名称。

  逆向查找区域虽然建立了,但逆向查找区域并没有被激或者其中并没有PTR记录,通常就是这种原因造成上述问题的出现。

正确答案:C

 

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