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單項(xiàng)選擇題

An administrator has been having problems with server security. Many of the servers have been infected with viruses in the past. Which of the following can be done to ensure that systems avoid OS exploits? ()

A. Implement an intrusion detection system (IDS).
B. Implement a dual-factor authentication method.
C. Implement a patch management process.
D. Implement stronger user passwords.

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