单项选择题
Which of the following commands can be used to gain root privileges and profile without initially logging in as root?（）
A. su B. su root C. su - root D. su -c "root"
单项选择题 WhichofthefollowingisTRUEabouterrorprocessing?（）
单项选择题 AllofthefollowingclassesoferrorsareloggedintheerrorreportEXCEPT（）.
单项选择题 AnAIXsystemadministratorhassetupdiskquotas.Wherecanthereportsbefoundonthesystem?（）
