在信息系统安全保护中，依据安全策略控制用户对文件、数据库表等客体的访问属于 （ ） 安全管理。
- A.安全审计
- B.入侵检测
- C.访问控制
- D.人员行为
正确答案及解析
正确答案
解析
访问控制（Access Control）指系统对用户身份及其所属的预先定义的策略组限制其使用数据资源能力的手段，通常也是主体依据某些控制策略或权限对客体本身或其资源进行的不同授权访问。访问控制是系统保密性、完整性、可用性和合法使用性的重要基础，是网络安全防范和资源保护的关键策略之一。访问控制一般用于系统管理员控制用户对服务器、目录、文件等网络资源的访问。
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