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 technologies when implemented allows for the GREATEST fault tolerance for memory?（）
A. RAID
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C. ECC
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WhichofthefollowingistheLASTstepanadministratorshouldtakewhentroubleshootinganissue？（）
A. Identify changes to the system.
B. Replicate the problem in the system.
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A server is configured with two network cards. To utilize the bandwidth of both network cards at the same time without assigning more than one IP address, which of the following load balancing techniques should be used?（）
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