Win2008 Virtualization with DMZ

[master]

Hello All,

 

I am newbie. I have few questions about windows server 2008.

 

1. Suppose there is a large physical server that can have 3 or 4 guest sessons without being overloaded. These guest servers will provide services like Email service, File sharing service, update distrbution service, data service through MS Sql Server, Share point services etc.
   With out virtualization it looks like the below.
   

Suppose I want to apply virtualization. There is only one physical server then I should put DMZ server session at parent session. Is it right? Will it affect any security ???

 

2. What other things I can put on my parent session?? Where should I put my Domain controller??

 

 

-Master