You can only answer questions on the machine, but you can't sign. Normal process: after the exam of subject 1 is over, candidates should sign for confirmation. This signature confirmation has nothing to do with whether the candidate passes the exam, as long as he passes the exam, because this is the process stipulated in the driver's license exam. After the candidates have finished the exam of this subject, they should wait for the examiner to take out the report card of this subject and sign it for confirmation. Even if the candidates fail the exam, they should sign it for confirmation.