IT Examiner School, Seaside, CA

Types of Virtual Environment(s) • Full Virtualization - almost complete simulation of the actual hardware to allow software to run unmodified • Partial Virtualization - some but not all of the target environment attributes are simulated. Some “guest” programs may require modifications to run in such environments • Storage Area Networks (SANs) - collection of computers and storage devices dedicated to store and protect data from across local and wide area networks How do businesses use VM? • Network Virtualization - combining available resources in a network by splitting the available bandwidth and channels • Storage Virtualization - pooling of physical storage from multiple network storage devices into what appears to be a single storage device, e.g. SAN(s) • Server Virtualization - using software to divide a physical server into multiple isolated virtual environments • Desktops Virtualization - essentially the same as server virtualization