That interview measures nothing. The interviewer should have explained what he wanted and meant by the "3 sum closest". Especially with ESL candidates, I can't

That interview measures nothing. The interviewer should have explained what he wanted and meant by the "3 sum closest". Especially with ESL candidates, I can't expect them to have the same names for some common problems. The best interviews, however, typically starts with a problem the candidate has never seen. Because I consider that asking relevant questions to figure out a problem is an important skill.