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不属于DNS动态更新类型的选项是?

不属于DNS动态更新类型的选项是()。

A.只允许安全的动态更新
B.不允许动态更新
C.允许安全的非安全的动态更新
D.允许管理员指定设备的动态更新

 

正确答案

D

答案解析

动态更新允许DNS客户端发生改变的任何时候,使用DNS服务器注册和动态地更新其资源记录,它减少了对区域记录进行手动管理的需要,特别是对于频繁移动或改变位置并使用DHCP获得IP地址的客户端更是如此,题目当中仅有选项D不属于DNS动态更新的选定。

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