You work as a network exchange administrator at company.com.the company.com network currently consists of a single active directory forest containing a single domain named company.com.the company.com organization makes use of microsoft exchange server 2008 service pack 2 （sp2） as their messaging solution.The.com， network contains a server named - sr02.during the course of the business week you receive instruction from company.com to perform an installation of microsoft exchange server 2010 on -sr02.the installation must support the mailbox， hub transport and client access server roles.What should you do？（）

• A、you should consider having the windows management framework installed.
• B、you should consider having message queuing installed.
• C、you consider having the web server role installed before the rpc over http proxy component is installed.
• D、you should consider having microsoft .net framework 3.5 service pack 1 （sp1） installed.
• E、you should consider having the windows remote management （winrm） 2.0 installed.
• F、you should consider running the servermanagercmd.exe -ip exchange-typical.xml command.
• G、you should consider running the servermanagercmd.exe -ip exchange-base .xml command.