Give the best example of open source Cloud Computing

Cloud Computing
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Open –source cloud is a cloud service or solution that is built using open –source software and technologies. This includes any public, private or hybrid cloud model providing SaaS, IaaS, PaaS**,** or XaaS built and operated entirely on open –source technologies .
The best example of open source Cloud Computing is OpenStack.

This is one of the most frequently asked cloud computing interview questions.

Cloud computing lets us store and access our applications or data over remote computers instead of your own computer. First of all, the cloud is just a metaphor to describe the technology. Basically, the cloud is nothing but a knowledge centre crammed with many components like servers, routers, and storage units. Cloud data centres might be anywhere within the world; also we can access it from anywhere with an Internet-connected device. It has the following benefits as given below:

  1. Pay-per-use Model: We only have to pay for the services as we use.
  2. 24/7 Availability: It is always online! There is no such time that you simply cannot use our cloud service; you’ll use it whenever you would like.
  3. Easily Scalable: it’s very easy to proportion and down or turn it off as per customers’ needs. For instance, if your website’s traffic increases only on Friday nights, you can opt for scaling up your servers that particular day of the week and then scaling down for the rest of the week.
  4. Security: Cloud computing offers amazing data security. Especially if the data is mission-critical, then that data can be wiped off from local drives and kept on the cloud only for your access to stop it from ending up in the wrong hands.
  5. Easily Manageable: You only have to pay subscription fees; all maintenance, up-gradation and delivery of services are completely maintained by the Cloud Provider. This is backed by the Service-level Agreement (SLA)