Which command retrieves the list of image stream tags to verify an image stream was created?

Which command retrieves the list of image stream tags to verify an image stream was created?

• A. oc get istag
• B. oc get imagestreamtags
• C. oc describe is
• D. oc get istag

Answer: (A)

Image streams are organized with tags, so to confirm an image stream was created you want to see the ImageStreamTag resources. Using the short resource name istag with oc get queries the API for ImageStreamTag objects and lists all the tags across image streams in your current project, giving you a direct view of what tags exist. This makes it the quickest and clearest way to verify the tags are present. You could also use the longer form imagestreamtags, but istag is the concise shorthand specifically for ImageStreamTag resources. Describing the image stream (oc describe is) shows details about the stream itself but isn’t as direct for listing all tags.

Image streams are organized with tags, so to confirm an image stream was created you want to see the ImageStreamTag resources. Using the short resource name istag with oc get queries the API for ImageStreamTag objects and lists all the tags across image streams in your current project, giving you a direct view of what tags exist. This makes it the quickest and clearest way to verify the tags are present. You could also use the longer form imagestreamtags, but istag is the concise shorthand specifically for ImageStreamTag resources. Describing the image stream (oc describe is) shows details about the stream itself but isn’t as direct for listing all tags.