What step should you take to ensure developers can access OCI resources while using Microsoft Active Directory?

The correct choice is to create a group for developers on OCI and map it to a similar group in Active Directory. This approach leverages the concept of identity federation between Microsoft Active Directory and Oracle Cloud Infrastructure (OCI). By mapping a group in OCI to an equivalent group in Active Directory, you can streamline access management and ensure that permissions and policies are consistently applied across both environments.

When developers are members of a specific Active Directory group, mapping this group to the corresponding group in OCI allows those developers to gain the necessary permissions to access OCI resources without the need to manage individual user accounts in OCI. This not only simplifies user management but also enhances security by allowing you to control access based on group membership within Active Directory.

Creating a new user account for each developer would lead to unnecessary administrative overhead, making it harder to manage and maintain access as developers join or leave the organization. Federating all Active Directory groups with OCI could also be an extensive and complex process that may not be necessary, depending on the organization’s structure and requirements. Importing users from Active Directory into a new group in OCI without mapping may not provide the intended organizational structure or access controls, thus making the third option the most effective choice for integrating OCI with Active Directory for developer access.