Official OCIR documentation describes more than one valid registry hostname shape for the same regional service. Which statement is accurate?
Select an answer to reveal the explanation.
Short Explanation
OCIR docs accept the long ocir.<region>.oci.oraclecloud.com form and OC1 short *.ocir.io forms for the same regional service. Mix a region key into the wrong long-form host and you invent a hostname that does not exist.
Full Explanation
Official OCIR documentation documents more than one valid hostname shape for the same regional registry service. Common forms include the long ocir.<region-identifier>.oci.oraclecloud.com style and, in the OC1 commercial realm, shorter *.ocir.io regional forms. Both refer to the regional OCIR endpoint when composed correctly; inventing a hybrid—such as mixing a region key into the wrong long-form pattern—yields a hostname that does not resolve to the service.
A single global hostname registry.oracle.com is not the model for regional OCIR repositories across realms. Any hostname ending in .oracle.com does not automatically become OCIR; DNS and product endpoints are specific. Registry domains are not chosen silently by the Docker daemon in place of the image path—the host you put in the image reference (and in docker login) is exactly where Docker sends traffic.
Exam caveat: realm and region matter—copy hostnames from current Oracle docs for your realm rather than memorizing one string forever. Operational check: resolve the documented regional hostname (or open it in a login attempt), docker login successfully, and confirm pushes appear in the Console for that same region rather than failing with connection or certificate errors from a malformed host.