IBM Exam C1000-150 Topic 2 Question 60 Discussion

When performing an air-gapped upgrade of Cloud Pak for Business Automation, the images used for the upgrade reside in a local registry. An air-gapped environment is one in which there is no external network access, so the images cannot be pulled from a remote registry such as IBM registry, RedHat quay.io registry, or Docker Hub. Instead, the images must be pre-pulled and stored in a local registry that is accessible to the OpenShift cluster.

https://www.ibm.com/support/knowledgecenter/en/SSYHZ8_20.0.x/com.ibm.dba.baw.install/topics/install_airgap_prereq.html

https://www.ibm.com/support/knowledgecenter/en/SSYHZ8_20.0.x/com.ibm.dba.baw.install/topics/install_airgap_procedure.html

https://www.ibm.com/support/knowledgecenter/en/SSYHZ8_20.0.x/com.ibm.dba.baw.install/topics/install_airgap_registry.html