Darril wrote: » Here's a blog entry that may help. It explains uses of virtualization.Security Plus: Get Certified Get Ahead: Use of Virtualization in Security As far as risks, the primary risk is a single point of failure. In other words if a physical server is hosting several virtual servers and the physical server goes down, all of the virtual servers also go down. Most server virtialization technologies (such as VMWare and Hyper-V) support clustering to protect against a single point of failure. HTH, Darril Gibson Author: CompTIA Security+: Get Certified Get Ahead ISBN-10: 1439236364