After issuing the nfsstat -rs command， the null received column starts to grow. This indicates which of the following conditions？（）

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

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

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

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 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？（）

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？（）

When monitoring a system using vmstat with an interval， which of the following conclusions should be drawn about the metrics under page pi and page po？（）

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？（）

When setting up schedules and enforcing scheduling of different types of workloads， which of the following are critical performance issues？（）