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單項選擇題

Which of the following RAID levels provide the best performance for a system where there are mostly writes occurring？（）

A. RAID 0
B. RAID 1
C. RAID 3
D. RAID 5

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單項選擇題

If percentage of RAM occupied by file pages falls below minperm， page replacement algorithm steals pages from （）

A. file pages only.
B. computational pages only.
C. either file or computational pages.
D. working segment only.

單項選擇題

Which of the following performance tools will work with optimized code and also provides source statement profiling？（）

A. prof
B. gprof
C. kprof
D. tprof

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