网络用户能进行QQ聊天， 但在浏览器地址栏中输入www.educity.cn却不能正常访问该页面，此时管理员应检查（）。
- A.网络物理连接是否正常
- B.DNS 服务器是否正常工作
- C.默认网关设置是否正确
- D.IP 地址设置是否正确
正确答案及解析
正确答案
解析
QQ能够聊天说明物理网络正常，机器的网络IP地址设置和网关设置正常。而这个时候无法访问WWW站点，就要考虑DNS是否不正常，而导致无法正常访问。
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