A cloud administrator is designing role-based access control security policies for a private Cloud. Which two statements

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A cloud administrator is designing role-based access control security policies for a private Cloud. Which two statements are the goals of these policies? (Choose two.)

A. to ensure that no known security vulnerabilities are present
B. to protect data center integrity in case of a link failure in any layer
C. to provide content security services
D. to reduce security risks when accessing the data center
E. to control access so that administrators have access only to systems for which they have administrative responsibilities