What, if any, concerns do you have about online learning?

My main concern would be what would happen if internet access was down for a period of time? I would hope that a phone call could help the situation and remedy it until internet could be established again. We will depending a lot on the internet and fast connections. We are all aware of problems that can arise such as computer issues, connectivity problems on both ends and other things. I am sure that JHU has allowances for such cases, but it is a concern nonetheless.