单项选择题
A. more than one process is spinning.
B. more than 4 processes become active.
C. the system schedules more than 16 processes.
D. the pageouts divided by page steals is greater than 1/h.
单项选择题 Asystemmustbeevaluatedandtuned.Inordertouseasetofperformanceevaluationprograms（e.g.，filemon，svmon，andtprof）whichofthefollowingpackagesshouldexistonthesysteminquestion？（）
单项选择题 Whichofthefollowingcommandscanbeusedtoobtaininformationabouttheinstalledsoftware？（）
单项选择题 Whichofthefollowingcommandscanbeusedtowatchsystemerrorsastheyarelogged？（）
