IBM(000-234)单项选择题每日一练(2019.01.15)

单项选择题
The rmss command provides the facility to run an application over a range of memory sizes and display the performance statistics. How is the simulated memory reset to the real memory of the machine？（）
A. rmss -c
B. rmss -p
C. rmss -r
D. rmss -s
单项选择题
Page replacements algorithm steals file pages only when percent of RAM occupied by filepages（）
A. falls below minperm.
B. is between minperm and maxperm.
C. higher than maxperm.
D. lower than maxperm.
单项选择题
When the length of the run queues， process or thread dispatches interrupts， and lock contention metrics and statistics are analyzed for performance， which of the following resources is being analyzed？（）
A. CPU
B. Memory
C. Disk I/O
D. Network I/O
单项选择题
In an iostat report， which of the following options best describes the value of % idle？（）
A. A representation of the equation （tps/kbps）*100
B. The percentage of time the disks are idle with no activity
C. The percentage of time the disks are idle with no outstanding CPU requests
D. The percentage of time the CPU is idle with no outstanding disk I/O requests
单项选择题
Which of the following commands will reset NFS options to their defaults？（）
A. nfso -d
B. nfso -c
C. startsrc -g nfs -d
D. startsrc -g nfs -r