070-458 無料問題集「Microsoft Transition Your MCTS on SQL Server 2008 to MCSA: SQL Server 2012, Part 2」
You administer a Microsoft SQL Server 2012 database that contains a table named AccountTransaction.
You discover that query performance on the table is poor due to fragmentation on the IDX_AccountTransaction_AccountCode non-clustered index.
You need to defragment the index. You also need to ensure that user queries are able to use the index during the defragmenting process,
Which Transact-SQL batch should you use?
You discover that query performance on the table is poor due to fragmentation on the IDX_AccountTransaction_AccountCode non-clustered index.
You need to defragment the index. You also need to ensure that user queries are able to use the index during the defragmenting process,
Which Transact-SQL batch should you use?
正解：B
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You are designing a SQL Server Integration Services (SSIS) data flow to load sales transactions from a source system into a data warehouse hosted on Windows Azure SQL Database. One of the columns in the data source is named ProductCode.
Some of the data to be loaded will reference products that need special processing logic in the data flow.
You need to enable separate processing streams for a subset of rows based on the source product code.
Which Data Flow transformation should you use?
Some of the data to be loaded will reference products that need special processing logic in the data flow.
You need to enable separate processing streams for a subset of rows based on the source product code.
Which Data Flow transformation should you use?
正解：C
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DRAG DROP
You administer a Microsoft SQL Server database.
You want to import data from a text file to the database.
You need to ensure that the following requirements are met:
- Data import is performed from a Windows batch file.
- Data is loaded as a unit and is minimally logged.
Which data import command and recovery model should you choose? (To answer, drag the appropriate data import command or recovery model to the appropriate location or locations in the answer area. Answer choices may be used once, more than once, or not at all. Answer targets may be used once or not at all. Additionally, you may need to drag the split bar between panes or scroll to view content.)
You administer a Microsoft SQL Server database.
You want to import data from a text file to the database.
You need to ensure that the following requirements are met:
- Data import is performed from a Windows batch file.
- Data is loaded as a unit and is minimally logged.
Which data import command and recovery model should you choose? (To answer, drag the appropriate data import command or recovery model to the appropriate location or locations in the answer area. Answer choices may be used once, more than once, or not at all. Answer targets may be used once or not at all. Additionally, you may need to drag the split bar between panes or scroll to view content.)
正解：
You administer two Microsoft SQL Server 2012 servers named ProdSrv1 and ProdSrv2. ProdSrv1 is configured as a Distributor. Both servers are configured to use the windows NT Service virtual accounts for all SQL Services.
You are configuring snapshot replication from ProdSrv1 to ProdSrv2 by using ProdSrv2 as a pull subscriber.
The distribution agent on ProdSrv2 regularly fails, displaying the following error message:
"Cannot access the file. Operating system error code 5 (Access is denied.)."
You need to configure the distribution agent by granting only the minimum required access to all accounts.
What should you do?
You are configuring snapshot replication from ProdSrv1 to ProdSrv2 by using ProdSrv2 as a pull subscriber.
The distribution agent on ProdSrv2 regularly fails, displaying the following error message:
"Cannot access the file. Operating system error code 5 (Access is denied.)."
You need to configure the distribution agent by granting only the minimum required access to all accounts.
What should you do?
正解：C
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HOTSPOT
You are developing a SQL Server Integration Services (SSIS) package. The data source for the data flow task is a table that has been configured as a change data capture (CDC) table. You are using a CDC Source component to obtain the CDC data.
The data source will be polled once per hour. The data is updated with multiple important status changes per minute.
For each captured data change, the before and after values must be included.You need to configure the CDC Source component.
Which CDC processing mode should you select? (To answer, configure the appropriate option in the dialog box in the answer area.)
You are developing a SQL Server Integration Services (SSIS) package. The data source for the data flow task is a table that has been configured as a change data capture (CDC) table. You are using a CDC Source component to obtain the CDC data.
The data source will be polled once per hour. The data is updated with multiple important status changes per minute.
For each captured data change, the before and after values must be included.You need to configure the CDC Source component.
Which CDC processing mode should you select? (To answer, configure the appropriate option in the dialog box in the answer area.)
正解：
HOTSPOT
You are developing a SQL Server Integration Services (SSIS) package to implement an incremental data load strategy. The package reads rows from a source system and compares them to rows in a destination system. New rows will be inserted and changed rows will be updated.
You have used a Lookup transformation and a Conditional Split transformation. The Lookup transformation joins the source and destination table on the business key, and includes all columns from the destination table in the data flow output. The Conditional Split transformation inspects the destination columns and directs data flow to either insert new records or update existing records.
You need to configure the Lookup transformation to ensure that all records flow to the Conditional Split transformation, regardless of whether the rows match an existing row in the destination table.
Which setting should you select? (To answer, select the appropriate option in the answer area.)
You are developing a SQL Server Integration Services (SSIS) package to implement an incremental data load strategy. The package reads rows from a source system and compares them to rows in a destination system. New rows will be inserted and changed rows will be updated.
You have used a Lookup transformation and a Conditional Split transformation. The Lookup transformation joins the source and destination table on the business key, and includes all columns from the destination table in the data flow output. The Conditional Split transformation inspects the destination columns and directs data flow to either insert new records or update existing records.
You need to configure the Lookup transformation to ensure that all records flow to the Conditional Split transformation, regardless of whether the rows match an existing row in the destination table.
Which setting should you select? (To answer, select the appropriate option in the answer area.)
正解：
