“…The rapid virtualization growth helps create complex environments, thus managing to achieve the highest possible accuracy, fidelity, scalability and flexibility while reducing implementation costs. Additionally, by using a simulation/hybrid environment, a university can develop a CR [35,[66][67][68], while, before 2010, CR was developed for military purposes only (Emulab [69], NCR, StealthNet, and LARIAT [70]) mainly due to high development and maintenance costs. In question 7, we discuss which type of virtualization technology is chosen for the development of CR, and, according to ECSO [71], there are two types, conventional and cloud virtualization.…”