单项选择题
Which of the following technologies allows a single physical processor to do the work of multiple processors?（）
A. Symmetric multi-processing
B. Multicore
C. 64-bit processing
D. Hyper-V
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单项选择题
An administrator needs to update the anti-virus, security patches, BIOS, and the web server software on a production system. Which of the following is the BEST method to accomplish this?（）
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B. Update the web software, security patches, anti-virus, and then the BIOS.
C. Update security patches, BIOS, web software, and then the anti-virus.
D. The order does not matter, only one change at a time should be done.
