Explain the differences between public, private, and community clouds. What are some of the factors to consider when choosing which of the three to use?

What will be an ideal response?

Public clouds are available to the general public; private clouds are operated for the use of one organization; and community clouds are shared by several organizations with common needs. Some factors to consider: Which models can you afford? Are there other organizations with whom you might be able to share cloud costs? Can you afford the risks of shared infrastructure?