I was contacted by a recruiter who found me on LinkedIn. He asked if we could talk at some point about a position he thought I would be a good fit for.

We set up a time and talked over the phone for about 15 minutes. He explained a bit about the position, asked about my background, and posed a few technical questions.

Although he seemed to really like my background, it went downhill with the questions he asked. They all focused on one aspect of the position, as described.

The questions were all phrased as: "What is the difference between x and y?"

He told me he would submit my information to a hiring manager and get back to me within a couple of days. A week later, I emailed asking what was up and mentioned that I would probably be a better fit for a different position.

He replied that he hadn't heard anything and would ping the hiring manager again, with no reference to my suggestion about a different position. Two weeks after that, I still hadn't heard back, presumably because they weren't interested.

Upon contacting the recruiter again, his email address no longer existed, so he had probably left.