Hello,

Using S3sync to backup S3 data and I have a couple of questions.

1. Is there a bandwidth transfer (and resulting Amazon charge) for files that exist in both the source and destination and are unchanged?

2. What mechanism is used to check that files are unchanged and does that mechanism incur a bandwidth transfer/charge?

If my questions are too vague or silly, please forgive my naivete, but I'm new to this software.

Thanks in advance for your help.