Transfer large data using WCF

Question

Hi,

My requirement is to transfer data to a client through WCF services. Data can be of 1MB to 1GB size to be transferred.
So, what can I do, I can pull Data from the database and provided to the client through WCF service.Client can then add it in its local database. How can I manage transferring large data? I want to be able to resume the process if it fails in the middle of the transfer. How can I know if the Client local database has been updated or not.Should I be using a WCF streaming?

Thanks.