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

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 commands should be used to identify packet sequence problems？（）

Which of the following tools should be used to display the location of unused physical partitions on a disk drive？（）

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

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？（）

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？（）

An AIX system administrator needs to adjust the maximum amount of memory that can be pinned. Which of the following commands is used to make the change？（）

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？（）

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