單項(xiàng)選擇題

An AIX system administrator needs to adjust the maximum amount of memory that can be pinned. Which of the following commands is used to make the change？（）

A. vmtune -M
B. svmon -m
C. vmstat -s
D. schedtune -m

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單項(xiàng)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

單項(xiàng)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.