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NEW QUESTION: 1
You are analyzing a Windows client application that uses Microsoft Visual Studio 2010 and Microsoft SQL Server 2008.
The application updates two database tables from the main user interface (UI) thread.
You need to ensure that the following requirements are met:
The database tables are either updated simultaneously or not updated at all.
Users are notified of the success or failure of the updates.
Users are able to perform other tasks during the update process.
What should you do?
A. Use TransactionScope in a Using block on the UI thread.
Batch the database updates by setting the DbDataAdapter.UpdateBatchSize property to 2.
B. Move the database update logic to a BackgroundWorker thread.
Ensure that the thread is enclosed in a TransactionScope Using block in the BackgroundWorkerDoWork method.
C. Use TransactionScope in a Using block on the UI thread.
Create a DependentTransaction object within the block and pass the object to the BackgroundWorkerReportProgress method.
Use the object in the ReportProgress method to create a new TransactionScope block.
D. Use TransactionScope in a Using block on the main thread.
Create a BackgroundWorker thread within the block.
Move the database updates to the BackgroundWorkerDoWork method.
NEW QUESTION: 2
A technician is troubleshooting a PC that has been running slow. The technician looks at the resource utilization and notices the user has many programs open. When attempting to open another program, the technician receives a message indicating there are insufficient resources. Which of the following should the technician do to troubleshoot the issue?
A. Increase the page file size
B. Renew the network connection
C. Terminate the running processes
D. Run chkdsk
NEW QUESTION: 3
Your company has a Microsoft SQL Server data warehouse instance. The human resources department assigns all employees a unique identifier. You plan to store this identifier in a new table named Employee.
You create a new dimension to store information about employees by running the following Transact-SQL statement:
You have not added data to the dimension yet. You need to modify the dimension to implement a new column named [EmployeeKey]. The new column must use unique values.
How should you complete the Transact-SQL statements? To answer, select the appropriate Transact-SQL segments in the answer area.
NEW QUESTION: 4
Site A and Site B are connected to the two ports of the switch respectively. When Site A sends a data packet to Site B for the first time, which of the following statements is correct?
A. The switch learned the address of B
B. The switch learned the address of A
C. The switch learns the addresses of A and B at the same time.
D. The switch did not learn any address