Virtualization in the cloud computing technology allows to rent a complete hardware-software infrastructure, eliminating the costs associated with the process of aging of ICT infrastructure and its technical service. The effect of virtualization is the efficiency and flexibility of the infrastructure, which the customer does not possess physically, but uses virtually. Changes in the need for infrastructure are made as quick corrections rather than complete replacement. Adapting the infrastructure to needs is no longer a complicated and time-consuming logistics and decision-making process. It has become an easy and user-friendly service the customer purchases and can change at any time.