Navigate to site 3.4 and dev test course. Go to resource: file section and compare all resources with the website. Check the same resources show size and/or file type and/or last update and info is correct. Now as admin log-in to the 3.3 web site, go to the course External repositories and configure some of the files embedded or for download so they display their file size Access to the same site using a student account and check that the file size displayed matches the one you see in the site.