Which cloud model uses some datacenters focused on providing cloud services to anyone that wants them, and some data centers that are focused on a single customer?

According to the shared responsibility model, which cloud service type places the most responsibility on the customer?

Which cloud service type is most suited to a lift and shift migration from an on-premises datacenter to a cloud deployment?

What type of cloud service type would a Finance and Expense tracking solution typically be in?

Which type of scaling involves adding or removing resources (such as virtual machines or containers) to meet demand?

What is characterized as the ability of a system to recover from failures and continue to function?