What's the difference between "Update URL alias" and "Update automatic nodetitles" in Drupal?

These option开发者_如何学Gos appear on the admin page /admin/content/node in the "Update options" drop-down.

The url aliasses are fake addresses, while a page may be stored at /node/13 the alias makes it so you can see the page at /this-website-is-cool

The automatic nodetitles option is related to a seperate module, the "Automatic nodetitles" module, which does something entirely unrelated