隐私保护技术的目标是通过对隐私数据进行安全修改处理，使得修改后的数据可以公开发布而不会遭受隐私攻击。隐私保护的常见技术有抑制、泛化、置换、扰动、裁剪等。其中在数据发布时添加一定的噪声的技术属于（ ）。
- A.抑制
- B.泛化
- C.置换
- D.扰动
正确答案及解析
正确答案
解析
隐私保护的常见技术有抑制、泛化、置换、扰动、裁剪等。（1）抑制：通过数据置空的方式限制数据发布。（2）泛化：通过降低数据精度实现数据匿名。（3）置换：不对数据内容进行更改，只改变数据的属主。（4）扰动：在数据发布时添加一定的噪音，包括数据增删、变换等。（5）裁剪：将数据分开发布。
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