Regarding that last bullet point, it is worth noting that SharePoint 2013 is available in different flavors that can be deployed in a variety of ways with respect to cloud consumption, but this type of deployment and associated integrations can dictate the distribution of responsibility. While most cloud providers typically stress a "shared responsibility" approach to cloud computing, it may be difficult to ascertain the boundaries of that responsibility, which also applies as much to DR as it does to ongoing operations.
Let's take a high-level look at the following three general cloud deployments as they relate to shared responsibility:
SaaS: SharePoint Online is a subscription-based service that provides customers with an enterprise-grade solution for creating websites on which to share documents and information with colleagues and other customers. SharePoint Online is one of several cloud services offered as part of Microsoft Office 365, Microsoft's premiere SaaS offering...