Explanation
Deleting the image and deleting the image repository from Docker Trusted Registry (DTR) does not completely delete an image from disk in DTR. Deleting an image only removes its tag and association with a repository, but does not delete its underlying layers from disk. Deleting a repository only removes its metadata and tags, but does not delete its underlying layers from disk either. To completely delete an image from disk in DTR, you need to run a garbage collection job after deleting the image or the repository. A garbage collection job scans the DTR storage and removes any unused layers that are not referenced by any images or repositories. References: https://docs.docker.com/ee/dtr/user/manage-images/delete-images/,
https://docs.docker.com/ee/dtr/admin/configure/garbage-collection/

Explanation
This does not configure a Docker container to export container logs to the logging solution. The docker logs command shows information about the logs of a container. It does not export or send the logs to any external destination. To configure a Docker container to export container logs to the logging solution, you need to use the --log-driver and --log-opt flags when creating or running the container. These flags allow you to specify which logging driver and options to use for the container. For example, to use Splunk as the logging driver, you can use --log-driver splunk and provide the Splunk URL, token, and other options using --log-opt.
References: https://docs.docker.com/engine/reference/commandline/logs/,
https://docs.docker.com/config/containers/logging/configure/,
https://docs.docker.com/config/containers/logging/splunk/

Explanation
Using docker logs <container-id> does not configure a Docker container to export container logs to the logging solution. The docker logs command shows information logged by a running container, such as standard output and standard error streams. It does not send or export container logs to any external service.
References: https://docs.docker.com/engine/reference/commandline/logs/,
https://docs.docker.com/config/containers/logging/