BUS 311 Ch6 Textbook Q6-1 Why are organizations moving to the cloud? Define cloud and explain the three key terms in your definition. Describe the differences between mainframe, client-server, and cloud architectures. Explain the difference between scalability and elasticity. Using Figure 6-5 as a guide, compare and contrast cloud-based and in-house hosting. What factors encourage organizations to move to the cloud? When does it not make sense to use a cloud-based infrastructure? - Cloud: the elastic leasing of pooled computer resources over the internet - Mainframe: large-scale high-speed centralized computers; Client-Server: allows clients to send requests across the internet to servers - Scalability: easily able to respond to incremental growth in demand; Elasticity: leased computing resources can be increased or decreased dynamically, programmatically, in a short span of time and that organizations only pay for the resources that they use - Organizations prefer the cloud because lower costs, ubiquitous access, improved scalability, and elasticity - It does not make sense to use the cloud for organizations required by law or by industry standard practice to have physical control over their data Q6-2 How do organizations use the cloud? Describe how an organization can benefit from the cloud’s resource elasticity, pooling, and unique Internet connectivity. Define SaaS, PaaS, and IaaS. Provide an example of each. For each, describe the business situation in which it would be the most appropriate option. Define CDN and explain the purpose and advantages of a CDN. Explain how Web services can be used internally.
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