[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.

[单选题]You are the administrator of a network that consists of a single Windows NT 4.0 domain. The network contains five Windows NT Server domain controllers and 1,000 Windows NT Workstation client computers.You want to install Windows 2000 Server on a new computer. You want the new computer to act as domain controller in the existing domain.

正确答案 ：B

On the new computer, install Windows NT Server 4.0 and designate the computer as a BDC in the existing domain. Promote the computer to the PDC of the domain. Upgrade the computer to Windows 2000 Server.

解析：解析：Explanation:ToinstallaWindows2000computerasadomaincontrollerinaWindowsNT4.0domain,wemustfirstinstallWindowsNT4.0thecomputerasaBDCintheWindowsNT4.0domainandthenpromotetheBDCtoPDC.WemustthenupgradethemachinetoWindows2000Server.WhenupgradingthedomaincontrollersinaWindowsNTdomaintoWindows2000,wemustupgradetheprimarydomaincontrollerfirst.Incorrectanswers:B:ThecomputermustbeinstalledasBDCandthenlaterpromotedtoPDC.C:ThecomputermustfirstbeinstalledasaWindowsNT4.0BDCandthenpromotedtoPDC.D:ThecomputermustfirstbeinstalledasaWindowsNT4.0BDCandthenpromotedtoPDC.

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