Answers

Here are the answers to this chapter’s questions:

1. While responsibilities can be shared between AWS and the customer, accountability cannot. Regardless of the shared model, the customer always retains ultimate accountability for their data and for ensuring their part of the responsibilities is adequately addressed.
2. The shared responsibility model’s significance in terms of IaaS, PaaS, and SaaS lies in the delineation of security responsibilities. For IaaS, AWS is responsible for the security of the underlying infrastructure while the customer is responsible for the security of the OS, application, and data. For PaaS, AWS extends its responsibility to include the runtime and middleware, while the customer is responsible for the applications and data. For SaaS, AWS is responsible for the entire stack, and the customer is only responsible for user-related settings and data.
3. The shared responsibility model applies differently to various AWS compute...