[单选题]You are the administrator of a SQL Server 2000 computer. The server contains a database that stores financial data. You want to use Data Transformation Services packages to import numeric data from other SQL server computers. The precision and scale values of this data are not defined consistently on the other servers.You want to prevent any loss of data during the import operations. What should you do?

正确答案 ：B

Use the ALTER COLUMN clause of the ALTER TABLE statement to change data types in the destination tables. Change the data types to reflect the highest precision and scale values involved in data transfer.

解析：解析：Explanation: The ALTER COLUMN clause of the ALTER TABLE statement can be used to change the definition of a column and can be used to alter the precision and scale values of the data types. The destination precision should be changed so no data would be lost. The transformation to a data type with higher precision is automatic and would not require any coding.

[单选题]Your Windows 2000 Server computer has a 10-GB hard disk with two partitions: Drive C and drive D. Windows 2000 Server is installed on Drive D. Both partitions are formatted as NTFS. Your office experiences a power failure that causes your Windows 2000 Server computer to restart.When the computer is restarting, you receive the following error message "NTLDR is missing. Press any key to restart".

正确答案 ：B

Start the computer by using Windows 2000 Server computer CD-ROM and choose to repair the installation. Select the Recovery Console and copy the NTLDR file on the CD-ROM to the root of the system partition.

解析：解析：Explanation:Theproblemposedinthisscenariocouldarisefromanumberofcauses.ItcouldbethattheNTLDRismissing,orthebootsectoriscorrupt,orthediskisphysicallydamaged.IfweassumethattheproblemcausedbyamissingNTLDR,wecoulduseeithertheEmergencyRepairDisk(ERD)ortheRecoveryConsoletocorrectheproblem.UsingeithertheEmergencyRepairDiskortheRecoveryConsolewewouldattempttocopytheNTLDRfilefromtheWindows2000installationCD-ROMtotherootofthesystempartition,whichcouldsolvethebootproblem.Incorrectanswers:B:Debuggingmodeisaspecialsafemodeoptionthatusedbydeveloperstodebugprograms.ItcannotbeusedrestoretheNTLDR.C:Windows2000doesnotsupportabootablefloppydisk,althoughthefourWindows2000setupdiskscouldbeusedtostartthecomputerinWindows2000.TheRecoveryConsoleortheERDprocessmustbeusedtorestoretheNTLDR.D:TheFileSignatureVerificationutilityisusetotesttheintegrityofdevicedrivers.ItcannotbeusedrestoretheNTLDR.

[单选题]You are the administrator of a network that includes Windows NT Server 4.0 computers, Windows NT Workstation 4.0 computers, and UNIX computers. The network consists of a single Windows NT domain.You are upgrading a Windows NT Server computer named Server1 to Windows 2000 Server. Server1 is a BDC in the domain. The existing DNS server is a UNIX computer that supports SRV (service) records and is configured to accept dynamic updates. The existing WINS server is another Windows NT Server computer.

正确答案 ：C

Promote Server1 to the PDC of the domain. Run Windows 2000 Setup on Server1.

解析：解析：Explanation: We want to upgrade the NT domain to an Active Directory domain; particularly we want to migrate the NT user accounts. First we need to promote server1 to PDC since it contains the master copy of domain information - SAM. Then upgrade the PDC to Windows 2000 Server. Active Directory requires a DNS server that supports SRV (service records). The UNIX DNS server supports this.

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