单项选择题

A system is experiencing performance problems. After checking the CPU usage, the problem identified is that the system is "CPU Bound". Which of the following outcomes will determine if there is a possible CPU constraint?（）

A. Low paging
B. High paging
C. Workload manager is not turned on
D. A high run queue length

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单项选择题

If a system administrator wants to show only a disk report for disk2, at two second intervals, what is the correct command to run?（）

A. iostat disk1 1
B. iostat -d disk1 2
C. iostat disk2 1
D. iostat -d disk2 2

单项选择题

What does the FREQ column show when running the tprof option?（）

A. Total amount of Ticks used by all users
B. Total amount of Ticks used by all processes
C. Total amount of Ticks used by a specific user
D. Total amount of Ticks used by a specific type of process

单项选择题

Which of the following commands can be used to determine if a disk drive is causing a bottleneck?（）

A. vmstat
B. fileplace
C. iostat
D. lvmstat