Correct me if I'm wrong (I mean it), but I think that the default and most comfortable setting for any technology trainer is to expound on a topic through a lecture (mostly, with a presentation of slides) then field questions during and after. There is nothing inherently wrong with that. In fact, I have been lucky enough to witness tech trainers who are really good at it, who prepare really informative and interesting lectures, who allow for anyone to ask any question at any time, whose presentation slides are so brilliantly crafted that they are memorable enough for the learning to stick.
But still, some of the best learning experiences I have had have been spaces where learning is facilitated through interaction between participants, where more time is spent on facilitators asking questions, where participants are given the tools / resources to answer their own questions, where participants take the lead in knowing what they need to know.
I don't mean to make false dichotomies here. But I've also witnessed way too many tech trainers who do nothing but lecture and create one-way communication channels between them and their participants. Whenever I do, I always wonder if a learning opportunity has been missed because the trainer couldn't draft a better design for their session.