题目内容

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

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