You are an administrator at the Contoso Corporation, which has approximately 400 servers running Windows Server 2012 R2, 50 servers running Windows Server 2012, and 200 servers running Windows Server 2008 R2. You also have several virtual machines running Windows 7 and Windows 8. The organization also uses several Microsoft applications, including several Microsoft SQL Servers, several Microsoft Exchange servers, as well as others. Describe the best way to monitor all of these applications.