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？（）

Page replacements algorithm steals file pages only when percent of RAM occupied by filepages（）

The system administrator notices that IP packets are not getting forwarded. The system administrator wants to use an AIX machine as an internetwork router over TCP/IP networks. Which of the following commands will allow this change on the fly？（）

Which of the following commands should be used to monitor the number of threads on the scheduler’s run queue for any given interval？（）

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

Which of the following options would best help to reduce packet fragmentation for a TCP application transferring large amounts of data between servers across a path of multiple networks？（）

A system administrator would like to set a system to reboot after a crash.  What is the best way to do this？（）

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

To examine the Exhibit， press the Exhibit button. Using the "ps -mo THREAD" output as shown in the exhibit， which of the following conclusions is most appropriate to draw？（）

In an iostat report， which of the following options best describes the value of % tm_act？（）