Developing SQL Databases — Question 125

Note: This question is part of a series of questions that use the same or similar answer choices. An Answer choice may be correct for more than one question in the series. Each question independent of the other questions in this series. Information and details provided in a question apply only to that question.
You are a database developer for a company. The company has a server that has multiple physical disks. The disks are not part of a RAID array. The server hosts three Microsoft SQL Server instances. There are many SQL jobs that run during off-peak hours.
You must monitor and optimize the SQL Server to maximize throughput, response time, and overall SQL performance.
You need to examine delays in executed threads, including errors with queries and batches.
What should you do?

Answer options

• A. Create a sys.dm_os_waiting_tasks query.
• B. Create a sys.dm_exec_sessions query.
• C. Create a Performance Monitor Data Collector Set.
• D. Create a sys.dm_os_memory_objects query.
• E. Create a sp_configure "˜max server memory'query.
• F. Create a SQL Profiler trace.
• G. Create a sys.dm_os_wait_stats query.
• H. Create an Extended Event.

Correct answer: G

Explanation

The correct answer is G, as creating a sys.dm_os_wait_stats query provides insights into wait statistics that can help identify performance bottlenecks caused by delays in thread execution. The other options, while useful for various monitoring tasks, do not specifically focus on analyzing wait statistics which are essential for understanding delays in executed threads.