I’ve just passed the Hashicorp Terraform Associate exam.
Badge at:
https://www.credly.com/badges/4dfa9e5b-f2b4-4165-a43e-09c21119e607/linked_in
If you are interested in learning terraform please check:
Official doc: https://www.terraform.io/docs
Certification: https://www.hashicorp.com/certification/terraform-associate
Free Youtube video by Andrew Brown: https://www.youtube.com/watch?v=V4waklkBC38
OCI provider latest information is available here.
and finally, I highly recommend you to try the Terraform Cloud free account.