题目内容

前端光发射机射频输入至激光器电平增大1dB，光链路C/N将（）。

A. 增加1dB
B. 下降1dB
C. 增加2dB
D. 下降2dB

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A Windows Azure application connects to a SQL Azure database. The database size has increased significantly. Some queries in the application no longer complete. You need to recommend an approach for identifying queries that do not complete. What should you recommend？（）

A. Use the SQL Server Profiler to capture all SQL activities.
B. Use a Dynamic Management View to analyze performance.
C. Use the Database Engine Tuning Advisor to analyze the workload.
D. Use Microsoft SQL Server Management Studio to analyze the SQL logs.

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