An AIX system has a rootvg plus a separate volume group for database application. Which of the following commands are sued to backup the entire system?（）

单项选择题A system administrator has an existing mksysb image, but would like to modify the image.data file on the mksysb before installing it on a system. Which of the following procedures is most appropriate to perform?（）

A.Create a new image.data file and recreate the mksysb image.
B.Use the dd command to replace the image.data file on the mksysb tape.
C.Use the tctl command to palce the new image.data file on the mksysb tape.
D.Place the new image.data file on a diskette that will be road during the installation of the mksysb.

单项选择题After crating a mksysb, what is the most important procedure that should be followed?（）

A.List the files and verify it is bootable
B.Make sure it is labeled and store it in a safe place.
C.Make sure it is write-protected and labeled.
D.Look at the output of the mksysb command to verify it completed successfully.

单项选择题CDE is working. However, the customized PATH environment has not been implemented. Which of the following procedures should be performed to activate he implementation?（）

A.Update the .kshrc file
B.Edit $HOME/.dtprofile, and uncomment the DTSOURCEPROFILE=true
C.Copy /etc/.profile $HOME/.dtprofile and edit the file as needed
D.Double click on the System Administration icon and select CDE profile

单项选择题A software update was installed using the Apply option, however the update is no longer required. Which of the following procedures should be performed to remove the update?（）

A.Use the Reject option
B.Delete the update form the /usr/lpp directories
C.Use the Force Overwrite option to re-install the earlier version
D.Commit the update and then remove the updated product filesets using SMIT

单项选择题Users are complaining of slow performance. The iostat command indicates hdiskxxx is extremely busy. There is no activity on any other hdisks in the same volume group. Which of the following is the best action to take?（）

A.Change intra policy to outer
B.Change intra policy to center
C.Change inter policy to maximum
D.Increase the physical partition size