Question
H Explain the importance of virtualization in cloud computing? How security is achieved through virtualization? Emulation and isolation are important features of virtualization. Justify the statement.
Answer :
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Virtualization plays a central role in cloud computing because it enables the efficient use of physical resources by creating multiple virtual environments on a single physical machine. It allows hardware, software, storage, and network resources to be abstracted and shared among multiple users or tenants. Without virtualization, cloud computing could not achieve its goals of scalability, elasticity, and cost-effectiveness. By decoupling hardware from software, virtualization provides an infrastructure where resources can be dynamically allocated, workloads can be moved seamlessly, and systems can achieve high levels of availability. This flexibility is crucial in both public and private cloud environments, as it ensures optimal resource utilization and supports on-demand service delivery. From a security perspective, virtualization offers several mechanisms to strengthen cloud infrastructure. Virtual machines (VMs) created on the same physical host are logically separated, ensuring that the compromise of one VM does not affect the others. This isolation prevents attackers from easily moving laterally across systems
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