Administering a SQL Database Infrastructure — Question 88

You administer a Microsoft SQL Server 2016 database named Orders.
Users report that during peak usage periods, certain operations are taking more time than expected. Your initial analysis suggests that blocking is the cause.
You need to gather more data to be able to determine which processes are being blocked and to identify the root cause.
What should you do?

Answer options

• A. Start a trace using SQL Server Profiler to catch the Lock: Deadlock event.
• B. Use sp_configure to set the blocked process threshold. Start a trace using SQL Server Profiler to catch the Blocked Process Report event.
• C. Schedule a SQL Agent job to run every 60 seconds and insert the results of executing the sys.dm_os_wait_stats DMV into a table.
• D. Use System Monitor to catch the Lock Waits/sec event.

Correct answer: B

Explanation

The correct answer is B because setting the blocked process threshold allows SQL Server to generate a report on blocked processes, which helps identify the root cause of blocking. Option A focuses on deadlocks rather than general blocking, while C does not specifically address identifying blocked processes, and D only monitors lock waits without providing detailed information on blocked processes.