To use the MySQL Database Service, you need to have the following three prerequisites1:
* You must create a tenancy and be able to sign in to it. A tenancy is a secure and isolated partition within Oracle Cloud Infrastructure where you can create, organize, and administer your cloud resources2. You need to have a valid Oracle Cloud account and credentials to access your tenancy and use the MySQL Database Service.
* You must create a compartment to store your resources. A compartment is a logical container that you can use to organize and isolate your cloud resources within a tenancy3. You can create one or more compartments to store your MySQL Database Service resources, such as MySQL DB systems, backups, and connections. You can also control the access and permissions for each compartment using policies4.
* You or your group must be granted the policies described in Mandatory Policies. Policies are documents
* that specify who can access which resources, and how5. To use the MySQL Database Service, you need to have the necessary permissions to create and manage the MySQL Database Service resources, as well as the related Oracle Cloud Infrastructure resources, such as Virtual Cloud Networks, subnets, and security lists. The documentation provides a list of mandatory policies that you or your group must be granted to use the MySQL Database Service.
D is incorrect, because you do not have to download the latest MySQL version from
https://edelivery.oracle.com/. The MySQL Database Service is a fully managed service that provides you with the MySQL version that you select when creating a MySQL DB system. You do not have to download or install any MySQL software on Oracle Cloud Infrastructure.
E is incorrect, because you do not have to install the downloaded MySQL version onto Oracle Cloud Infrastructure. As mentioned above, the MySQL Database Service is a fully managed service that handles the installation and configuration of the MySQL software for you.
References: 1: Getting Started With MySQL Database Service 2: About Your Tenancy 3: About Compartments 4: Managing Compartments 5: About Policies : Mandatory Policies : Creating a MySQL DB System