单项选择题
A.tet1 -f /dev/rmt1.0 fsf 9; tar -xv file 10
B.tet1 -f /dev/rmt1.1 fsf 10; tar -xv file 10
C.tet1 -f /dev/rmt1.1 fsf 9; dd if = /dev/rmt1.1 of=file 10
D.tet1 -f /dev/rmt1.0 fsf 9; dd if =file10 of /dev/rmt1.0
单项选择题 There is the possibility that hdisk1 in the root volume group is going bad. A decision has been made to replace the disk. After saving all of the data from the disk and unmounting any filesystems on the disk, which of the following commands should be run before removing the disk from the system?（）
单项选择题 Which of the following options will show all of the fixes installed on a system?（）
单项选择题 A file on the system ahs been lost, but the latest version is on a mksysb tape. The file is extracted from this mksysb tape by loading the tape. Which of the following indicates where the tape will be skipped forward?（）