well the thing is if person A and person B apply for the same job. and their applications are essentially the same, or are what the company is looking for in an employee, and person A has an A+ certification, and person B puts that they have experience. If the company can only interview one person then they will pick person A because they have something that proves that they know what their doing. that having been said, that doesn't mean that person B doesn't know as much, if not more then person A, but companies don't look into how much the person has, just what they can prove they know.