Questions on how process works << Back to Exam

Hi, I have a few questions on how the certification process works here at www.studysection.com: -Are there any penalties / mention of how many attempts is performed to complete a test, on the website or on the certification? -Is the score with which you passed a test listed on the certification? Is there additional mention/benefit to obtaining a high score? Is there a possibility to improve your score by retaking a test if desired, and if so, how does that process work? -Do certificates expire after a certain period of time has passed, if so, how long is that duration? Thanks, Timothy