* Requirement Analysis: Strict compliance mandates logging all user access to private resources in a multi-tier setup.
* Option A Assessment: Dynamic port forwarding with no logging fails compliance, as it provides no audit trail.
* Option B Assessment: Managed Bastion sessions in OCI offer detailed logging (e.g., session start/end times, user IDs), integrated with OCI Logging. This meets compliance needs with a managed, scalable solution.
* Option C Assessment: SSH port forwarding with minimal logs doesn't provide the detailed auditing required for strict compliance.
* Option D Assessment: A jump server with manual logging is error-prone, lacks scalability, and isn't a managed OCI service, making it less suitable.
* Conclusion: Option B provides the most robust, compliance-ready solution with detailed logging.
From Oracle's Bastion documentation:
* "OCI Bastion provides managed SSH sessions with detailed logging capabilities, capturing user access details for audit and compliance. Enable session logging to record all activities."This supports Option B as the best choice. Reference:Bastion Service Overview - Oracle Help Center(docs.oracle.com/en-us
/iaas/Content/Bastion/Concepts/bastionoverview.htm).