A SQL Azure database generates an error when a row is inserted into any table in the database.  No error is generated when a row is deleted. 
You need to recommend an approach for locating the source of the errors. 
What should you recommend？（）  

You are designing a Windows Azure application.  
Corporate policy dictates that you must retain all application logs.  
You need to recommend an approach for complying with the corporate policy. 
What should you recommend？（）

A Windows Azure application requires high Windows Azure Storage throughput. 
Windows Azure Diagnostics is configured for scheduled transfers to Windows Azure Storage. The application is experiencing slow response times.  
You determine that the current Windows Azure Diagnostics configuration is responsible for the reduced application performance.  
You need to recommend an approach for improving application performance. 
What should you recommend？（）

You are planning the migration of an existing application to Windows Azure.  The application includes a trace listener that produces log files.  
The log files must be transferred to the Windows Azure Storage service each day with the minimum amount of effort.  
You need to recommend an approach for transferring the log files. 
What should you recommend？（）