单项选择题
A recently installed package needs to be rolled back to aprevious version.
Which of the following commands will perform the task?（）
A.reject
B.cleanup
C.deinstall
D.uninstall
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相关考题
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单项选择题
A non-root user can run rsh commands from serverA to serverB, but attempts to run rsh commands by the root user return with apermission error message. What action will resolve the problem?（）
A.Add root user to the /etc/hosts.equiv on serverB
B.Create $HOME/.rhosts file for the root user on serverB
C.Restart the rshd daemon with root enabled option on serverB
D.Add entry to allow root user from serverA to the /etc/hosts.allow on serverB -
单项选择题
Which command restores files from a volume group backup on a specified media?（）
A.mksysb-r
B.savevg-r
C.restorevg-r
D.restorevg files -
单项选择题
Which port must be open on the HMC to allow remoteweb access？（）
A.22
B.80
C.443
D.8080
