Question 4. "A programmer is developing a Node.js application which will run on a Linux server on their on- premises data center. This application will access various Oracle Cloud Infrastructure (OCI) services using OCI SDKs. What is the secure way to access OCI services with OCI Identity and Access Management (IAM)?
A. Create a new OCI IAM user, add the user to a group associated with a policy that grants the desired permissions to OCI services. In the on-premises Linux server, add the user name and password to a file used by Node.js authentication.
B. Create a new OCI IAM user, add the user to a group associated with a policy that grants the desired permissions to OCI services. In the on-premises Linux server, generate the keypair used for signing API requests and upload the public key to the IAM user.
C. Create a new OCI IAM user associated with a dynamic group and a policy that grants the desired permissions to OCI services. Add the on-premises Linux server in the dynamic group.
D. Create an OCI IAM policy with appropriate permissions to access the required OCI services and assign the policy to the on-premises Linux server."
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