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This lesson covers IaaS, PaaS and SaaS, which are various cloud service categories. • Infrastructure as a Service (IaaS): Per NIST SP 800-145, defines this as the 'capability is provided to provisioning processing, storage, networks, and other fundamental computing resources….." • Platform as a Service (PaaS): Offers the customer the capability to deploy onto the cloud infrastructure… • Software as a Service (SaaS): provides the customer the ability to use applications which run on the cloud's infrastructure. All of these services have different benefits as well as drawbacks and suit different needs.