单项选择题
A user is unable to determine the default system text editor. How can the local administrator assist the user by identifying the default text editor for the system？（）
A.Login as the user and run ’echo $ENV’. B.Login as root and run the ’env’ command. C.Login as root and ’cat /etc/environment’. D.Login as the user and run the ’env’ command.
单项选择题 Howisthedefaultprintqueueidentified？（）
单项选择题 Whatisthecorrectmethodfordeleting’paging04’pagingspace？（）
单项选择题 Whichcommandwillallowthecreationofa10-characterloginusername？（）
