单项选择题

An application server is running slowly. After viewing performance monitoring data it is detected that the disk queue length is high.
Which of the following could BEST resolve the situation？（）

A. Add more disk drives.
B. Increase the amount of virtual memory.
C. Add a faster processor.
D. Add more memory to stop paging to disk.

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Which of the following server virtualization features would BEST allow an administrator to quickly prepare a virtual server so that it is ready for use？（）

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An application server is running slowly. After viewing performance monitoring data it is detected that the disk queue length is high. Which of the following could BEST resolve the situation？（）

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An application server is running slowly. After viewing performance monitoring data it is detected that the disk queue length is high.
Which of the following could BEST resolve the situation？（）