You have an application that uses a Microsoft SQL Server database on a Microsoft Azure virtual machine.
The application experiences performance issues, which you suspect are related to the connection pooling. The
issues are prevalent only when there are more than 150 concurrent connections.
You need to identify whether the performance issues are related to the connection pooling.
Which dynamic management view should you query?

A.
sys.dm_os_memory_pools

B.
sys.dm_exec_requests

C.
sys.dm_exec_connections

D.
sys.dm_exec_sessions

Explanation:
https://blogs.msdn.microsoft.com/sql_pfe_blog/2013/10/08/connection-pooling-for-the-sql-server-dba/