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單項選擇題

Which of the following expansion cards would be necessary to increase fault tolerance in a VoIP server?（）

A. Second Modem
B. Second CPU
C. Second HBA
D. Second PBX card

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單項選擇題

Which of the following ensures the MOST secure access to a server room？（）

A. ID card readers
B. Server rack doors
C. Biometric devices
D. Locked doors

單項選擇題

Which of the following is an example of a private IP address？（）

A.191.168.5.4
B.111.12.53.2
C.5.2.4.4
D.169.254.15.28

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