單項選擇題

What is a "system high" security policy?什么是一個“系統(tǒng)高”的安全策略？（）

A.A system where all users are cleared to view the most highly classified data on the system.系統(tǒng)上的所有用戶被許可查看最高級別的數(shù)據
B. A system that contains only data of one security classification.只包含一個安全級別的數(shù)據
C. A system with data that contains only data of the highest security classification.只包含最高安全級別的數(shù)據
D. A system that uses a Multi-Level Security Policy to separate the highly classified data from the other data residing on the system.使用多級安全策略去劃分高級別數(shù)據和其他數(shù)據。

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