Developing SQL Databases — Question 66

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 SQL Server instances. There are many SQL jobs that run during off-peak hours.
You must monitor the SQL Server instances in real time and optimize the server to maximize throughput, response time, and overall SQL performance.
You need to collect query performance data while minimizing the performance impact on the SQL Server.
What should you do?

Answer options

• A. 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: C

Explanation

The correct answer is C, creating a Performance Monitor Data Collector Set, as it allows for efficient monitoring of SQL Server performance with minimal overhead. Other options, like SQL Profiler trace (F) and some dynamic management views (A, B, D, G), can impose a higher performance impact, making them less suitable for the requirement to optimize server performance.