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You need to identify previous situations where a modification has prevented queries from selecting data in tables. What should you do?

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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 identify previous situations where a modification has prevented queries from selecting data in
tables.
What should you do?
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.
Answer: G