In order to change the system runlevel and execute /etc/inittab entries based on the new runlevel, which of the following commands should be performed?（）

单项选择题A user reports a corrupted boot logical volume. In order to recreate the contents of the boot logical volume which of the following procedures should the user be advised to perform?（）

A.Reboot the system in normal mode.
B.Use the bosboot command to rebuild the boot image.
C.Restore the boot logical volume from a mksysb image.
D.Reboot the system into maintenance mode and run fsck on the boot logical volume.

单项选择题A graphics card has been added to the system. After rebooting, the system hangs during the login process with a blue screen indicating CDE please wait . Which of the following procedures should be performed next?（）

A.Reinstall the CDE software
B.Check the name resolution
C.Uncomment the last line in .dtprofile
D.Boot in maintenance mode and perform fsck on file systems

单项选择题The mksysb command completed successfully. Which of the following steps are necessary to verify the mksysb is good?（）

A.Store the mksysb in a safe place because a successful completion guarantees the mksysb is good.
B.Boot from the mksysb to verify it is bootable and list the files on the mksysb.
C.Look at the bosboot output when the mksysb was created to verify it is good.
D.List the files on the mksysb beucase listing all the files verifies there are no problems with the mksysb.

单项选择题A system administrator needs to backup datavg which contains a database that pre-allocates files by padding them with nulls, similar to treating them as sparse files. In order to effectively backup and be able to restore the datavg files, which backup method should be used?（）

A.savevg
B.tar
C.cpio
D.mksysb

单项选择题Which of the following sequence of commands should be used to list the directories and files saved on a mksyst tape that has been rewound and placed in device rmt0?（）

A.tet1 -f /dev/rmt0 fsf 2; restore -xqvf /dev/rmt0
B.tet1 -f /dev/rmt0.1 fsf2; restore -Tvf /dev/rmt0.1
C.tet1 -f /dev/rmt0.1 fsf3; restore Tqvf /dev/rmt0.1
D.tet1 -f /dev/rmt0.1 fsf3; restore -Tvf /dev/rmt0.1