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  3. Brian, a security administrator, is responding to a virus infection. The antivirus application reports that a file has been infe

Brian, a security administrator, is responding to a virus infection. The antivirus application reports that a file has been infe

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问题 Brian, a security administrator, is responding to a virus infection. The antivirus application reports that a file has been infected with a dangerous virus and disinfecting it could damage the file. What course of action should Brian take?
选项 A、Replace the file with the file saved from the day before.
B、Disinfect the file and contact the vendor.
C、Restore an uninfected version of the patched file from backup media.
D、Back up the data and disinfect the file.
答案C
解析 C正确。最好的行动方针就是从备份介质中安装一个未经感染的补丁文件。试图给文件杀毒可能会破坏该文件，恢复一个已知是“干净”的文件是至关重要的。
A不正确。因为前一天的文件也可能已被感染。用一个新安装的补丁文件来完全替换这个文件是最好的做法。
B不正确。因为正如题中所述，给文件杀毒可能会造成文件被损害。除此之外，应用程序的供应商在这种情况下也不一定有用。恢复文件的“干净”版本继续生产反而更加容易。
D不正确。因为正如题中所述，备份这个文件同时也会备份病毒，而给文件杀毒会造成损害并可能造成数据丢失。
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