Explanation
Content delivery is a feature that allows users to share files with customers and protect them with a password.
Setting up an experience cloud site would require additional configuration and licensing. Utilizing an AppExchange product would introduce a dependency on a third-party solution.

Explanation
By default, three roles are created when the first external user is created on a partner account. These roles are Executive, Manager, and User. They form a role hierarchy that determines the level of access to data for the partner users

Explanation
Sharing the list views with the appropriate public group and sharing the list views with the appropriate role in the role hierarchy are two ways that UC can hide lists that are not relevant to an individual user. List view sharing allows users to share list views with other users based on public groups, roles, subordinates, or individual users. This way, users can only see list views that are relevant to them and their work. Option A is incorrect, since sharing list views with a queue is not possible. Option B is incorrect, since sharing list views with individual users would be tedious and inefficient.

Explanation
Only the user who uploaded the PDF to the Files Home private library can view it, as private files are not shared with anyone else1. Users with View All Data permission or users above him/her in the Role Hierarchy will not be able to view the private file, unless the user explicitly shares it with them.