单项选择题
A.#!/bin/ksh line is missing
B.Variable name VAR is not properly initialized
C.Loop variable is not incremented inside the loop
D.Loop variable is not decremented inside the loop
单项选择题 Asystemadministratorhasaserverthatisperformingpoorly.ThevmstatcommandidentifiesthathighCPUusageistheproblem.Whichofthefollowingcommandscanbeusedtoidentifytheeightmostactiveprocessesrunningontheserver？（）
单项选择题 Asystemadministratorisunabletounmountafilesystem.Whichistheappropriatecommandtodeterminewhoorwhatisaccessingthefilesystem？（）
单项选择题 Asystemadministratorwantstoconfigureasystemsothatallnewuserswillbeputintothedatabasegroupbydefault.Howwouldthisbeaccomplished？（）
