I believe these two are meta tags. If they're not, then I don't know how they're supposed to be used.
For (technical), it's got to be a technical question about something. Whatever it is, that's the tag that should be used. Does this just mean a hard question?
For (configuration), it's got to be the configuration of something, and again, that's the tag that should be used.
These tags, at least as I understand them, neither clarify a question nor indicate the area of expertise a question requires to answer. Those are the two things tags are supposed to do.