Code Review questions have been designed to give candidates a real-world task - review the code written by someone else and provide feedback on it. This task is ideal for more senior-level candidates who are expected to have existing industry experience. They may be managers, mentors, or simply contributing members of a high-performing team.
Code Review questions are manually graded, as there is no automated way to read the feedback or judge their seniority. However, written comments from the candidate can provide a really good signal of their seniority and experience in a relatively short amount of time for the candidate.
Refer to the below articles for creating and scoring a Code Review question: