Which command imports an external container image into an OpenShift ImageStream by specifying the image location and confirming the import?

• A. Create an ImageStream and set tags, then trigger an import to fetch the image.
• B. oc import-image <imagename> --from <registry>/<image> --confirm to fetch the image.
• C. oc tag <imagename> <registry>/<image>:
• D. You cannot import external images; you must build locally.

Answer: (B)

Importing an external image into an ImageStream is done by telling OpenShift where the image lives and then executing the import. The correct command uses the import operation directly: oc import-image --from / --confirm. Here, the ImageStream name identifies where you want to store or reference the image, --from points to the external image location, and --confirm actually performs the import so the ImageStream is updated to reference that external image. This makes the image available to builds and deployments via the ImageStream.

Other approaches either describe a multi-step process or use a different operation; for example, tagging can move or reference images in registries but does not perform the same import into an ImageStream, and claiming that external images cannot be imported is incorrect because OpenShift provides this workflow.