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

Which of the following RAID levels provide the best performance for a system where there are mostly writes occurring？（）

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？（）

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？（）

Which of the following phrases is TRUE regarding monitoring disk I/O with iostat？（）

The nice value is 80 in the ps listing.  Which command is used to change this to a value of 100？（）

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？（）

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？（）

A TCP/IP application is transferring files from a personal machine to a remote machine.  The application writes 32 kilobytes of data at a time to the socket， but has not issued a system call to set the window size.  Which of the following procedures should be performed on the personal machine to increase the throughput of the application？（）

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？（）