Docker Export vs Docker Save

Docker Export:
To persist docker container we need docker export command, that's why we need docker contaner-id. 
It doesn't have parent layers

Command: docker export <container-id> > /home/user1/docker_containers/Containerexport.tar

Restoring a Container:
docker import  - exampleimagelocal:new


Docker Save:
To persist docker images, we need image name to persist. It saves all parent layers.
Command:
docker save <image-name> >  /home/user1/docker_images/Imagesave.tar

Restoring an Image:
docker load <image-name> <  /home/user1/docker_images/Imagesave.tar