Which of the following logical volume placement policies is likely to give the best performance in most cases， all other factors being equal？（）

Which of the following commands will only provide a snapshot of average memory usage for a process？（）

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

Which of the following metrics provided by the iostat report is used to initially determine if a disk is I/O bound？（）

To examine the Exhibit， press the Exhibit button. While a user is compiling a C program， "vmstat 120 10" is run to determine the cause of a performance problem.  Given the vmstat output as shown in the exhibit， which of the following conclusions is most appropriate to draw about the machine？（）

In AIX 5L and later， the operating system supports the /proc filesystem. What would be the best description of the /proc filesystem？（）

To examine the Exhibit， press the Exhibit button. While a user is compiling a C program， "vmstat 120 10" is run to determine the cause of a performance problem.  Using the vmstat output as shown in the exhibit， which of the following conclusions is most appropriate to draw about the I/O bottleneck？（）

Which of the following commands is run to adjust the number of free paging-space pages at which AIX begins killing processes？（）

Which command series should be used to determine whether file paging or paging space paging is a problem when running a program from an idle system？（）

In order to determine how efficiently an application is reading and writing data， which of the following utilities will report read and write sizes on disk I/O requests？（）