You have a query that is used by a reporting dashboard. Users report that the query sometimes takes a long time to run. You need to recommend a solution to identify what is causing the issue. What…

Question

Options

• ASet the blocked process threshold, and then run SQL Server Profiler.
• BSet the blocked process threshold, and then create an alert.
• CEnable trace flag1204, and then create an alert.
• DCreate a job that queries the sys.dm_os_waiting_tasks dynamic management view.

• A
  16% (8)
• B
  72% (36)
• C
  8% (4)
• D
  4% (2)

Explanation

Step 1: Turn on the blocked process report. This will look for any blocking taking 20 seconds or longer. --Make sure you don't have any pending changes FROM sys.configurations WHERE value <> value_in_use; exec sp_configure 'show advanced options', 1; exec sp_configure 'blocked process threshold (s)', 20; GO Step 2: Set up a trace tocapture the blocked process report. Run it as a server side trace. blocked process threshold Server Configuration Option

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