What information is found in the following excerpt from the file /proc/mdstat? (Choose two.)

According to the Filesystem Hierarchy Standard (FHS), what is the path to the Linux kernel source and may be a symbolic link to the real Linux source code? (Please specify the full path with no version information.)

In the following output, the load averages represent the system load averages for what time frames?
12:10:05 up 18 days, 19:00, 2 users, load average: 0.47, 24.71, 35.31

Which command, with options, could be used to change an ext2 file system on /dev/hda1 to an ext3 file system?

Which of the following commands will provide the PIDs of the processes sorted by which are using the most CPU cycles on the Linux system?