I’ve met many engineers who can throw at you ten tech buzzwords in less than a minute. This is especially common with Junior engineers (I was one of them) that want to get their way out of trying new stuff.
The problem is they generate the perception that they know what they are talking about, which is very dangerous from a project management perspective.
On the other spectrum, I know senior engineers who would shy away from communicating any technical knowledge they acquired and will be seen as not experienced enough.
You can ask a simple question to cut through the clutter: when was the last time you did this? Recent experience with a specific technology indicates engineers who can get stuff done.