Final answer:
In a fully managed service such as Amazon Aurora, the Shared Responsibility Model means that Amazon is responsible for the physical infrastructure, while the user is responsible for the security of the instances and their own data.
Step-by-step explanation:
The implications of the Shared Responsibility Model in a fully managed service such as Amazon Aurora are as follows:
- Amazon is responsible for the physical infrastructure on which the user's data resides, including the network, hardware, and data centers.
- The user is responsible for the security, access management, and configuration of their own account, as well as any data they store in the service.
- Amazon is responsible for the operational aspects of the service, such as EC2 instance management, operating system updates, patching of software, and maintenance.
Therefore, the correct options are D) The user is responsible for the security of the EC2 instances on which the relational database resides and A) Amazon is responsible for only the physical infrastructure on which the user's data resides.