I'm looking for a term for a person who is a newcomer by definition, but has already had some knowledge in the field. Say this one are going to a lab in a field they didn't study before, so of course they are far more behind in both knowledge and experience to anyone in the lab. However, they have read a lot of Wikipedia articles in the related field, and has caught basic foundations, enough for them to ask not too novice questions.
What is the word for this person?