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多項選擇題

Which of the following are types of biometric devices used in server rooms？（）

A. Mantraps
B. Fingerprint scanners
C. CCTV systems
D. Retina scanner
E. Proxy card readers

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單項選擇題

Which of the following is a way to protect server operating systems from a short term contractor？（）

A. Biometric devices
B. Limited logon hours
C. Mantraps
D. Rack doors

多項選擇題

Which of the following are examples of physical security measures？（）

A. Policies and procedures
B. Encryption
C. Locked doors
D. Security personnel
E. Backup tapes