单项选择题
A. Network access and availability
B. Application access and availability
C. Escalation and conflict resolution
D. Headcounts and budgets
单项选择题 Using the schedtune output， memory is considered over-committed if：（）
单项选择题 Asystemmustbeevaluatedandtuned.Inordertouseasetofperformanceevaluationprograms（e.g.，filemon，svmon，andtprof）whichofthefollowingpackagesshouldexistonthesysteminquestion？（）
单项选择题 Whichofthefollowingcommandscanbeusedtoobtaininformationabouttheinstalledsoftware？（）