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What is Software Defined Network (SDN)

Contemporary Challenges for Cyber Security and Data Privacy
Network virtualization approach controlling traffic routing by taking over routing management from data routing in the physical environment.
Published in Chapter:
Cloud Computing: A Security and Defense Proposal
Michele Livio Perilli (University of Foggia, Italy), Michelangelo De Bonis (University of Foggia, Italy), and Crescenzio Gallo (University of Foggia, Italy)
Copyright: © 2023 |Pages: 16
DOI: 10.4018/979-8-3693-1528-6.ch001
Cloud computing involves large numbers of computers connected through a network that can be physically located anywhere. Providers rely heavily on virtualization to deliver their cloud computing services. Cloud computing can reduce operational costs by using resources more efficiently. Starting with a look at cloud types, such as software as a service (SaaS), platform as a service (PaaS), infrastructure as a service (IaaS), and cloud models such as public clouds, private clouds, hybrid clouds, community clouds, difference between a data center and cloud computing with relative advantages are explained, and finally why most of companies are migrating to this kind of technology. In the second part of chapter, the focus is on the risks and security of cloud computing. These complex architectures are highly vulnerable; therefore, it is proposed artificial intelligence (AI) models to protect them. Many system protection techniques have been realized to defend cloud-computing systems, but many works are in progress. The authors analyze the state of art on this subject.
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