单项选择题
A. Replace all components simultaneously to ensure that the system is functional.
B. Replace all hardware associated with the problem first to eliminate the possibility of hardware and move onto software.
C. Purchase new parts for the system to confirm that they function.
D. Implement one change at a time， reversing the change if it has not resolved the problem.
单项选择题 InWindowsserverpermissions，animplicitdeny：（）
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?（）
单项选择题 Which of the following technologies when implemented allows for the GREATEST fault tolerance for memory?（）