Azure Purview Traffic Over Azure Express Route

Hello everyone,

I was wondering if it is possible to route traffic from an on-prem network over Azure Express Route through an organization’s Azure tenant and then over the Azure backbone to Microsoft Compliance Center?   This way – access to data sources, that are on prem, by Azure Purview does not run over the Internet. 

What about Site to Site VPN – is this also an option for Azure Purview?

Thank you!