Sync of an indexed folder -- what goes to cloud?

Quick question: I have a database that I’m syncing using one of the cloud service providers. Inside the database I’ve indexed a Dropbox folder that updates relatively regularly.

What I’d like to know is if documents contained in that Dropbox (i.e. the indexed) folder are also synced to the cloud via DTPO? Or is it the case that only files that are actually stored in the database are synced?

(I vaguely recall reading something a while back suggesting that they weren’t being synced, but I can’t recall, and in any case the software has probably changed since I read it).

Thanks!

All indexed files are uploaded if the option “Synchronize indexed contents” is enabled.