Auserhasjustinstalledanapplicationthatiscausingsysteminstabilityandlock-upsandisnotallowingacleanuninstall.Toresolvethisissue,thetechnicianshould:()
A. powercyclethesystemcompletely.
B. runanon-demandvirusscan.
C. performasystemrestore.
D. checktheinstallationeventlogs
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影响样本容量大小的因素主要是()。
A. 置信概率
B. 均值
C. 总体方差
D. 样本均值
E. 边际误差
YouarethenetworkadministratorsettinguptheIPnetworkforanewbranchoffice.Youneedatleast5networkswith25hostseach.Youhavebeenallocateda/24network.Whichprefixlengthwillsatisfythegivenrequirements?()
A. /24
B. /26
C. /27
D. /28
Usershavestatedthatalltheirprintoutsfromanetworkedprinterconsistofrandomcharacters.Thetechnicianshould:()
A. performavirusscan.
B. replacethefuser.
C. reinstalltheprinterdrivers.
D. reinstalltheprinterfirmware.
Whichofthefollowingcommandswouldverifythehealthofthesectorsonaharddriveandrecoverdataondamagedsectors?()
A. TRACERT
B. SFC
CHKDSK
D. NSLOOKUP