Explain the difference between private cloud, public cloud

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Cloud Computing

Cloud computing has become a key component in the delivery and management of information systems for many organisations. It offers flexibility, scalability and significant cost cases. Man companies which cannot afford large software implementation can access systems over the cloud using Software as a service. Additionally where demands on systems and servers varies and peaks such as Black Friday must be managed, cloud computing offers the ability to access computing resources on demand, and we do not have to service a large capacity in-house. But there are problems with cloud computing which need addressing, particularly around security. Procuring cloud computing requires and understand of current services and capacity, and identification of IT applications and services which would benefit and a definition of a business case.

Tasks

Question 1. Using diagrams describe the concept of cloud computing. Discuss its reliance on data centres and identify what you would expect a cloud supplier to provide. Explain the difference between private cloud, public cloud and hybrid cloud. Using a case study, demonstrate how a company uses cloud services. Identify the benefits of cloud computing.

Question 2. Using a case study, define and explain the steps that will need to be undertaken to evaluate, select, and procureprocuring cloud services? What questions should you asked cloud service suppliers? How will you measure the benefits of cloud and implement a cloud service? What are the principle issues that need to be addressed in such contexts?

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