单项选择题

WhichofthefollowingistheBESTsolutionforrepairingaharddrivethatresultsintheCouldnotreadfromselectedbootdiskdisplayuponbooting？（）

A.Userecoveryconsoleandthebootcfg/rebuildcommand.
B.Userecoveryconsoleandthechkdskcommand.
C.Userecoveryconsoleandthefixbootcommand.
D.Userecoveryconsoleandthefixmbrcommand.

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Aclienthascalledwithconcernsthattheircomputerproblemhasnotbeenresolvedbytheonsitetechnicianwhohasleft.Asthetechnicianssupervisor，whichofthefollowingistheBESTcourseofactioninthissituation？（）

A.Telltheclientthattheywillneedtoplaceanotherservicecall.
B.Asktheclientiftheywouldliketodiscusstheircomputerproblemsinmoredetail.
C.Telltheclientthatanothertechnicianwillbesentout.
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Atechniciandeploysacomputerinapubliclibraryandwantstogivetheabilityforauserwithoutanaccounttousethecomputerwithlimitedpermission.Whichofthefollowingaccountswouldthetechniciansetup？（）

A.Guestuseraccount
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