You are a data

题目

You are a database administrator for your company. A database on one of the company’s SQL Server 2005 computers stores transaction information for the company’s Web-based order system. The database is configured to use the full recovery model. Your company receives very few orders between the hours of 19:00 and 04:00. Your maximum acceptable risk for data loss is one hour. Database backups must be performed as quickly as possible. You need to develop a maintenance plan to manage this risk. What should you do?()

  • A、Configure a Back Up Database task to do a full backup of the database every hour.Configure a Check Database Integrity task to run every hour.
  • B、Configure a Back Up Database task to do a full backup of the database every day at 19:00.Configure a second Back Up Database task to do differential backups at 09:00 and 14:00.Configure a third Back Up Database task to do transaction log backups every hour.
  • C、Configure a Back Up Database task to do a full backup of the database every day at 19:00.Configure a second Back Up Database task to do differential backups at 09:00 and 14:00.Configure a Check Database Integrity task to run every hour.
  • D、Configure a Back Up Database task to do a full backup at 09:00 and 14:00.Configure a second Back Up Database task to do transaction log backups every hour.
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相似问题和答案

第1题:

From SQL*Plus, you issue this SELECT statement:You use this statement to retrieve data from a data table for()。

A. Updating

B. Viewing

C. Deleting

D. Inserting

E. Truncating


参考答案:B, D

第2题:

You are the administrator of a SQL Server 2000 computer. You are creating a data transformation services package. As the first step in this process, you need to load data from text files into a database table. These text files contain data on new stores that join your franchise. The text files list the data columns in the following format StoreID, StoreName, Address, City, State, PostalCode, ManagerID, StoreTypeID, FacilityID.

The destination table is configured as shown in the exhibit.

You want to load the data into the table as quickly as possible. What should you do?

A.Use a Bulk Insert Task to read the data into a temporary table. Use an Execute SQL task to import the appropriate data into the destination table.

B.Create and edit a format file to select the columns you want to import. Use a Bulk Insert Task, and then specify the format file to import the appropriate data into the destination table.

C.Use a transform. data task to import the data. Use Microsoft ActiveX transformation scripts to write the appropriate data to the appropriate columns in the destination table.

D.Create and edit a format file to select the columns you want to import. Use a transform. data task, and then specify the format file to import the appropriate data into the destination table.


正确答案:B
解析:Explanation:TheBulkInsertTaskisthefastestmechanismforcopyinglargeamountsofdataintoaSQLServer2000tableorview.However,transformationscannotbeperformedonthedatawhileitismovedfromthesourcefiletothetableorview,asthiswouldslowdownthedatacopyprocess.ThusthetextfilemustbeformattedbeforetheBulkInsertTaskisused.TheformatfileprovidesthedefaultinformationusedeithertobulkcopythedatainthedatafileintoaninstanceofSQLServer2000ortobulkcopydataoutfromthetable.TheformatfilealsoprovidesawaytobulkcopydataselectivelyfromadatafiletoaninstanceofSQLServer.Thisallowsforthetransferofdatatoatablewhenthereisamismatchbetweenfieldsinthedatafileandcolumnsinthetable.Byusingaformatfile,itispossibletobulkcopydataintoaninstanceofSQLServerwithouthavingtoaddordeleteunnecessarydata,orreorderexistingdata,inthedatafile.IncorrectAnswers:A:TheBulkInsertTaskisthefastestmechanismforcopyinglargeamountsofdataintoaSQLServer2000tableorview.Itcanmakeuseofaformatfilethatallowsforthetransferofdatatoatablewhenthereisamismatchbetweenfieldsinthedatafileandcolumnsinthetable.Byusingaformatfile,itispossibletobulkcopydataintoaninstanceofSQLServerwithouthavingtoaddordeleteunnecessarydata,orreorderexistingdata,inthedatafile.Itthusmakestheneedtofirstimportthedataintoatemporarytableobsolete.C:TheTransform.Datataskisusedtocopydatabetweenasourceanddestinationandtooptionallyapplycolumn-leveltransformationstothedata.TheTransform.DatataskisthemostbasicimplementationofthedatapumpengineinDataTransformationServices(DTS)andisoptimizedforinsert-basedcopyingandtransformingofcolumn-leveldatabetweencommercialdatabases,spreadsheets,andtextfiles.However,theBulkInserttaskprovidesthebestperformanceforbulkinsertingtextfilesintoSQLServer2000,althoughitcannotbeusedtotransform.data.D:TheBulkInsertTaskisthefastestmechanismforcopyinglargeamountsofdataintoaSQLServer2000tableorview.Itcanmakeuseofaformatfilethatallowsforthetransferofdatatoatablewhenthereisamismatchbetweenfieldsinthedatafileandcolumnsinthetable.Byusingaformatfile,itispossibletobulkcopydataintoaninstanceofSQLServerwithouthavingtoaddordeleteunnecessarydata,orreorderexistingdata,inthedatafile.

第3题:

Exhibit: You are developing a Web application. The Web application uses a GridView control to display data. You build your Web Forms for the Web application by dragging and dropping tables from the Data Connections tree in Server Explorer. You need to add a connection to your data by using the Add Connection dialog box as shown in the exhibit. During the process, you need to configure the .NET Data Provider that you use to create the data source objects. What should you do?()

A. Right-click the connection, and click Properties. Modify the Provider property of the data connection.

B. Click the Change button, and change the data provider for the selected data source.

C. Click the Advanced button, and change the Data Source property to the target provider.

D. Click the Advanced button, and change the Application Name property to the target provider.


参考答案:B

第4题:

Which  statements are true regarding the Oracle Data Pump export and import operations()

  • A、You cannot export data from a remote database.
  • B、You can rename tables during an import operation.
  • C、You can overwrite existing dump files during an export operation.
  • D、You can compress the data during export but not the metadata because it is not supported

正确答案:B,C

第5题:

You are using flat files as the data source for one of your data warehousing applications. To optimize the application performance, you plan to move the data from the flat files to clustered tables in an Oracle database.While migrating the data, you want to have minimal impact on the database performance and optimize the dataload operation.  Which method would you use to load data into the Oracle database()

  • A、Use the external table population.
  • B、Use the Oracle Data Pump export and import utility.
  • C、Use the conventional path data load of the SQL*Loader utility.
  • D、Use the INSERT INTO...SELECT command to load the data

正确答案:C

第6题:

You are the administrator of SQL Server 2000 computer named FABSQL2K01. You create a Data Transformation Services package that contains definition for two transform. data tasks.

The tasks gets data from two text files named Customers and Sales. The DTS package is configured as shown in the exhibit.

You do not want the DTS package to add any data to the server unless both transform. data tasks complete successfully.

You select the use transactions check box of DTS package and the Join transaction of present check box of both transform. data tasks. You then select the fail package on step failure check box of both transform. data tasks.

You want to use the DTS package to import data from the text files to the server. You want to ensure that changes are committed if all imported data is successfully transformed.

What should you do?

A.Select the commit on successful completion check box of the DTS package.

B.Select the commit transaction on successful completion of this step check box of the customers transform. data task.

C.Select the commit transaction on successful completion of this step check box of the sales transform. data task.

D.Select the commit transaction on successful completion of this step check box of both transform. data tasks.


正确答案:A
解析:Explanation:ItispossibletosettheCommitonsuccessfulpackagecompletioncheckboxontheAdvancedTaboftheDTSPropertiesdialogBox.ThischeckboxspecifiesthatifeachindividualSQLstatementisatransactioncompletessuccessfully,thetransactionwillautomaticallybecommitted;andifthestatementhasanerror,thestatementisrolledback.Whenthischeckboxiscleared,theDTSconnectionsoperateinimplicittransactionmodeandthefirstSQLstatementbeginsatransactionthatremainsineffectuntilDTScommitsitorrollsitback.ThenextSQLstatementexecutedafteranycommitorrollbackstartsanewtransaction.IncorrectAnswers:B:TheCommittransactiononsuccessfulcompletionofthisstepcheckboxtreatseachstepinaDTSpackageasseparate.Thus,selectingtheCommittransactiononsuccessfulcompletionofthisstepcheckboxofthecustomerstransform.datataskwouldresultinthistaskbeingcommittedregardlessoftheprogressofthesalestransformationdatatask.C:TheCommittransactiononsuccessfulcompletionofthisstepcheckboxtreatseachstepinaDTSpackageasseparate.Thus,selectingCommittransactiononsuccessfulcompletionofthisstepcheckboxofthesalestransform.datataskwouldresultinthistaskbeingcommittedregardlessoftheprogressofthecustomer’stransformationdatatask.D:TheCommittransactiononsuccessfulcompletionofthisstepcheckboxtreatseachstepinaDTSpackageasseparate.Thus,selectthecommittransactiononsuccessfulcompletionofthisstepcheckboxofbothtransform.datataskswouldresultinthetwopartsbeingtreatedasseparateandeachpartbeingcommittedregardlessoftheprogressintheother.

第7题:

You install a custom application on a computer that runs Microsoft Windows XP. The application stores each user’s data in the %programfiles%\app1\data folder on the computer. You install the custom application on a computer that runs Windows Vista.On the Windows Vista computer, you back up the %programfiles%\app1\data folder and notice that the backup contains no data.You need to back up the application’s user data on the Windows Vista computer.What should you do?()

A.A

B.B

C.C

D.D


参考答案:D

第8题:

In which case would you use a FULL OUTER JOIN? ()

A. Both tables have NULL values.

B. You want all unmatched data from one table.

C. You want all matched data from both tables.

D. You want all unmatched data from both tables.

E. One of the tables has more data than the other.

F. You want all matched and unmatched data from only one table.


参考答案:D

第9题:

From SQL*Plus, you issue this SELECT statement: SELECT* FROM order; You use this statement to retrieve data from a data table for ().

  • A、Updating
  • B、Viewing
  • C、Deleting
  • D、Inserting
  • E、Truncating

正确答案:B,D

第10题:

Which two statements are true regarding the usage of the SQL*Loader utility()

  • A、You can load data into multiple tables during the same load session.
  • B、You can load data from multiple files to a table during the same load session.
  • C、You cannot perform selective data loading based on the values available in the records.
  • D、You can use an export file generated by the EXPDP utility as an input data file to load the data.
  • E、You can load data only if the input file is available on the disk and tape but not in a named pipes.

正确答案:A,B

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