Читать книгу CompTIA Cloud+ Study Guide - Ben Piper, David Higby Clinton - Страница 72

In the cloud, just as in the data center, you don't simply deploy your applications and forget about them. Applications have to be updated or reconfigured, and you'll probably end up adding or retiring applications over time. These operations always carry the risk of breaking working things, something that can be detrimental to your organization. Therefore, it's a best practice to test changes before rolling them out and committing to them. To achieve this, it's common to separate operations into four isolated sections of the cloud:

 Production

 Quality assurance/test

 Staging

 Development

As we walk through these categories, keep in mind that they can be broken down differently according to the needs of the organization. The point here is to protect the organization from data loss and downtime caused by changes.