
Explanation:
Box 1: No
A sync group contains one cloud endpoint, or Azure file share, and at least one server endpoint.
Box 2: No
Azure File Sync does not support more than one server endpoint from the same server in the same Sync Group.
Box 3: Yes
Multiple server endpoints can exist on the same volume if their namespaces are not overlapping (for example, F:\sync1 and F:\sync2) and each endpoint is syncing to a unique sync group.
Reference:
https://docs.microsoft.com/en-us/answers/questions/110822/azure-file-sync-multiple-sync- directories-for-same.html
https://docs.microsoft.com/en-us/azure/storage/files/storage-sync-files-deployment-guide