[单选题]You are the database administrator of a SQL Server 2000 computer. The server contains your company's Accounts database. Hundreds of users access the database each day.Because you have had power interruptions in the past, you want to perfect the physical integrity of the Accounts database. You do not want to slow down server operations.

正确答案 ：D

Ensure that write caching disk controllers have battery backups.

解析：解析：Explanation:Thescenariostatesthatpowerinterruptionshaveoccurredinthepast.Bybuyingabatterybackupsolutionforthediskcontrollersthepowerinterruptionproblemwouldbeprevented.IncorrectAnswers:A:Tornpagedetectionisareactivesolutionwhichwouldslowdownperformancesincerestoreswouldhavetobemade.Itwouldbettertouseapreventivesolution.Note:Tornpagedetection:Ifatornpageisdetected,thedatabasemustberestoredfrombackupbecauseitwillbephysicallyinconsistent.B:Cachingisveryimportforperformance.Disablingwrite-cachingwouldbeabadidea.D:Repairingthedatabaseeverynightisnotagoodsolution.Databaseerrorscannotbeaccepted.Itisbettertopreventtheprobleminsteadoftryingtofixitafterithashappened.

[多选题]You recently upgraded all Windows NT Workstation 4.0 computers to Windows 2000 Professional. You want to give a new employee named Maria the ability to back up files, share resources, and install programs on a client computer that she shares with other users. You do not want Maria to be able to read other users' files.What should you do to accomplish these goals? (Choose all that apply)

正确答案 ：CE

Add Maria's user account to the Power Users group.

Add Maria's user account to the Backup Operators group.

解析：解析：Explanation: By adding Maria's user account to the Power Users group Maria will inherit the ability to share resources and install programs on the computer. To grant Maria the ability to backup files she must be added to the Backup Operators group, which has the permissions to backup files. As a member of this group Maria will be able to backup files as she will inherit those rights by virtue of being a member of that group. Maria will not have permissions to read the users' files as neither the Power Users group nor the Backup Operators group have the permissions to read other users' files.

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