Security Administrator Street Smarts: A Real World Guide to CompTIA Security+™ Skills, Second Edition

2.7. Task 2.7: Virtualization

Virtualization is becoming one of the IT industry's hottest buzzwords. It is estimated that the CPU and RAM in a typical enterprise server is only about 20 percent utilized, resulting in wasted financial and computing resources. Virtualization allows you to run multiple virtual machines (VMs) on a single host (physical) machine. This improves resource utilization. Further, the processes that run on VMs are isolated from processes that run on other VMs, thus providing a layer of security for those processes and the data that the processes are accessing. You can isolate processes that access secure data from other processes, and you can utilize virtualization to solve problem child (unreliable applications) and