I did this lesson today and as predicted, it was a bit short - I think next year I will combine lessons 9 and 10 together into one day. The articles were relevant to students but I think a little more attention to DDoS is needed. There were some misconceptions around what it was - for example, one student said an example of DDoS is when he tries to send a text on Sunday night but it doesn't go through because everyone is filling up the wires with streaming Netflix. Another student pointed out that it would only be an example if the student was also trying to go onto Netflix but I think DDoS is caused by an INTENTIONAL overwhelming of the router - is that correct?
For example, last year on Hour of Code on Monday morning, I think the site was down because everyone was trying to access it at the same time - was that DDoS? Or does it have to be a "malicious" overwhelming by one (or a few individuals)? I guess I have some questions still about DDoS and need to do some research myself!
Finally, some feedback a student gave me was that he wished the videos (and my lectures) had more metaphors in to help him understand. I personally felt like there are a good amount of metaphors in the lectures (like the post office for example) but he must feel like it needs more. I will look out for ways to better use metaphors in my own teaching but I thought I would pass that along to you all too since you're the content area experts!