homework1-1 - cs524 wenyou huang 1 Using the formulae for the first software business model find the year where the cumulative support expense equals

# homework1-1 - cs524 wenyou huang 1 Using the formulae for...

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cs524 wenyou huang 1. Using the formulae for the first software business model , find the year where the cumulative support expense equals that of the initial licensing fee p , where p = \$12,000 per user, and c = 0.40 . In how many years will the initial cost of software becomes 5% of the overall expenditure? A: mcnp=np, m=1/c=1/0.4=2.5=3 years The initial cost/the overall expenditure=np/np(1+mc)=5%, the m=47.5=48 years 2. In the definition of Hybrid Cloud , a term “Cloud bursting” is mentioned. Search the Web for its definitions. Do these definitions agree? If so, provide what you think is the best definition (you can rephrase it as you see fit). If not, explain the differences between the definitions. A: . 1) Cloud bursting is an application deployment model in which an application runs in a private cloud or data center and bursts into a public cloud when the demand for computing capacity spikes. The advantage of such a hybrid cloud deployment is that an organization only pays for extra compute resources when they are needed. . 2) Cloud burst is a quality of service (QoS) metric used to gauge cloud solution scalability and measure software application capability and performance on hosted cloud platforms.Cloud application and service vendors provide benchmark performance ratios for total leased infrastructure and ensure maximized application hosting. However, a well- designed, scalable, flexible and reliable architecture easily handles network traffic and computing requirements, while a poorly- designed architecture will falter when subjected to resource-hungry applications.Also known as cloud bursting. . 3) Cloud bursting relates to hybrid clouds. The idea is that a given application normally runs in a private cloud or a local computing environment. If a situation arises where the application needs
additional resource (computing power, storage, etc.), it can "burst" into the public cloud and use Cloud Computing for those additional resources. 3.What are the essential differences between the public and private cloud that have made CIOs worry about legal consequences of Shadow IT? 1)Private Cloud: A private cloud hosting solution, also known as an internal or enterprise cloud, resides on company’s intranet or hosted data center where all of your data is protected behind a firewall. This can be a great option for companies who already have expensive data centers because they can use their current infrastructure. However, the main drawback people see with a private cloud is that all management, maintenance and updating of data centers is the responsibility of the company. Over time, it’s expected that your servers will need to be

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